diff --git a/sip-audio-session b/sip-audio-session index 29754ce..0d2002c 100755 --- a/sip-audio-session +++ b/sip-audio-session @@ -1,1122 +1,1177 @@ #!/usr/bin/python2 import atexit import os import platform import select import shutil import signal import sys import termios import uuid from datetime import datetime from itertools import chain from optparse import OptionParser from threading import Thread from time import sleep from application import log from application.notification import NotificationCenter, NotificationData from application.process import process from application.python.queue import EventQueue from application.system import makedirs from twisted.internet import reactor from sipsimple.account import Account, AccountManager, BonjourAccount from sipsimple.audio import WavePlayer from sipsimple.application import SIPApplication from sipsimple.configuration import ConfigurationError from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import Engine, SIPCoreError, SIPURI, ToHeader from sipsimple.lookup import DNSLookup from sipsimple.session import Session from sipsimple.streams import MediaStreamRegistry from sipsimple.storage import FileStorage from sipclient.configuration import config_directory from sipclient.configuration.account import AccountExtension from sipclient.configuration.datatypes import ResourcePath from sipclient.configuration.settings import SIPSimpleSettingsExtension from sipclient.log import Logger from sipclient.system import IPAddressMonitor class BonjourNeighbour(object): def __init__(self, neighbour, uri, display_name, host): self.display_name = display_name self.host = host self.neighbour = neighbour self.uri = uri class InputThread(Thread): def __init__(self): Thread.__init__(self) self.setDaemon(True) self._old_terminal_settings = None def start(self): atexit.register(self._termios_restore) Thread.start(self) def run(self): notification_center = NotificationCenter() while True: chars = list(self._getchars()) while chars: char = chars.pop(0) if char == '\x1b': # escape if len(chars) >= 2 and chars[0] == '[' and chars[1] in ('A', 'B', 'C', 'D'): # one of the arrow keys char = char + chars.pop(0) + chars.pop(0) notification_center.post_notification('SIPApplicationGotInput', sender=self, data=NotificationData(input=char)) def stop(self): self._termios_restore() def _termios_restore(self): if self._old_terminal_settings is not None: termios.tcsetattr(sys.stdin.fileno(), termios.TCSADRAIN, self._old_terminal_settings) def _getchars(self): fd = sys.stdin.fileno() if os.isatty(fd): self._old_terminal_settings = termios.tcgetattr(fd) new = termios.tcgetattr(fd) new[3] = new[3] & ~termios.ICANON & ~termios.ECHO new[6][termios.VMIN] = '\000' try: termios.tcsetattr(fd, termios.TCSADRAIN, new) if select.select([fd], [], [], None)[0]: return sys.stdin.read(4192) finally: self._termios_restore() else: return os.read(fd, 4192) class RTPStatisticsThread(Thread): def __init__(self, application): Thread.__init__(self) self.setDaemon(True) self.application = application self.stopped = False def run(self): while not self.stopped: if self.application.active_session is not None and self.application.active_session.streams: audio_stream = self.application.active_session.streams[0] stats = audio_stream.statistics if stats is not None: - self.application.output.put('%s RTP statistics: RTT=%d ms, packet loss=%.1f%%, jitter RX/TX=%d/%d ms\n' % + self.application.output.put('%s RTP audio statistics: RTT=%d ms, packet loss=%.1f%%, jitter RX/TX=%d/%d ms\n' % (datetime.now().replace(microsecond=0), stats['rtt']['avg'] / 1000, 100.0 * stats['rx']['packets_lost'] / stats['rx']['packets'] if stats['rx']['packets'] else 0, stats['rx']['jitter']['avg'] / 1000, stats['tx']['jitter']['avg'] / 1000)) + + try: + video_stream = self.application.active_session.streams[1] + except IndexError: + pass + else: + stats = video_stream.statistics + if stats is not None: + self.application.output.put('%s RTP video statistics: RTT=%d ms, packet loss=%.1f%%, jitter RX/TX=%d/%d ms\n' % + (datetime.now().replace(microsecond=0), + stats['rtt']['avg'] / 1000, + 100.0 * stats['rx']['packets_lost'] / stats['rx']['packets'] if stats['rx']['packets'] else 0, + stats['rx']['jitter']['avg'] / 1000, + stats['tx']['jitter']['avg'] / 1000)) sleep(10) def stop(self): self.stopped = True class CancelThread(Thread): def __init__(self, application): Thread.__init__(self) self.setDaemon(True) self.application = application self.stopped = False def run(self): while not self.stopped: self.application.end_session_if_needed() sleep(1) def stop(self): self.stopped = True class SIPAudioApplication(SIPApplication): spool_dir = "/var/spool/sipclients/sessions" def __init__(self): self.account = None self.options = None self.target = None self.active_session = None self.answer_timers = {} self.hangup_timers = {} self.started_sessions = [] self.incoming_sessions = [] self.outgoing_session = None self.neighbours = {} self.registration_succeeded = False self.success = False self.input = None self.output = None self.ip_address_monitor = IPAddressMonitor() self.logger = None self.rtp_statistics = None self.alert_tone_generator = None self.voice_tone_generator = None self.wave_inbound_ringtone = None self.wave_outbound_ringtone = None self.tone_ringtone = None self.hold_tone = None self.ignore_local_hold = False self.ignore_local_unhold = False self.batch_mode = False self.stop_call_thread = None self.session_spool_dir = None def _write(self, message): if isinstance(message, unicode): message = message.encode(sys.getfilesystemencoding()) sys.stdout.write(message) sys.stdout.flush() def start(self, target, options): notification_center = NotificationCenter() if options.daemonize: process.daemonize() self.options = options self.target = target self.batch_mode = options.batch_mode + self.enable_video = options.enable_video self.input = InputThread() if not self.batch_mode else None self.output = EventQueue(self._write) self.logger = Logger(sip_to_stdout=options.trace_sip, pjsip_to_stdout=options.trace_pjsip, notifications_to_stdout=options.trace_notifications) if options.spool_dir: self.spool_dir = options.spool_dir notification_center.add_observer(self, sender=self) notification_center.add_observer(self, sender=self.input) notification_center.add_observer(self, name='SIPSessionNewIncoming') notification_center.add_observer(self, name='RTPStreamDidChangeRTPParameters') notification_center.add_observer(self, name='RTPStreamICENegotiationDidSucceed') notification_center.add_observer(self, name='RTPStreamICENegotiationDidFail') if self.input: self.input.start() self.output.start() log.level.current = log.level.WARNING # get rid of twisted messages Account.register_extension(AccountExtension) BonjourAccount.register_extension(AccountExtension) SIPSimpleSettings.register_extension(SIPSimpleSettingsExtension) try: SIPApplication.start(self, FileStorage(options.config_directory or config_directory)) except ConfigurationError, e: self.output.put("Failed to load sipclient's configuration: %s\n" % str(e)) self.output.put("If an old configuration file is in place, delete it or move it and recreate the configuration using the sip_settings script.\n") self.output.stop() try: makedirs(self.spool_dir) except Exception as e: log.error('Failed to create spool directory at {directory}: {exception!s}'.format(directory=self.spool_dir, exception=e)) def print_help(self): message = 'Available control keys:\n' message += ' s: toggle SIP trace on the console\n' message += ' j: toggle PJSIP trace on the console\n' message += ' n: toggle notifications trace on the console\n' message += ' p: toggle printing RTP statistics on the console\n' message += ' h: hang-up the active session\n' message += ' r: toggle audio recording\n' message += ' m: mute the microphone\n' message += ' i: change audio input device\n' message += ' o: change audio output device\n' message += ' a: change audio alert device\n' message += ' SPACE: hold/unhold\n' message += ' Ctrl-d: quit the program\n' message += ' ?: display this help message\n' self.output.put('\n'+message+'\n') def _NH_SIPApplicationWillStart(self, notification): account_manager = AccountManager() notification_center = NotificationCenter() settings = SIPSimpleSettings() if 'armv7' in platform.platform() and settings.audio.echo_canceller.enabled: self.output.put("Disable echo canceller on ARM architecture\n") settings.audio.echo_canceller.enabled = False settings.save() for account in account_manager.iter_accounts(): if isinstance(account, Account): account.sip.register = False account.presence.enabled = False account.xcap.enabled = False account.message_summary.enabled = False if self.options.account is None: self.account = account_manager.default_account else: possible_accounts = [account for account in account_manager.iter_accounts() if self.options.account in account.id and account.enabled] if len(possible_accounts) > 1: self.output.put('More than one account exists which matches %s: %s\n' % (self.options.account, ', '.join(sorted(account.id for account in possible_accounts)))) self.output.stop() self.stop() self.end_cancel_thread() return elif len(possible_accounts) == 0: self.output.put('No enabled account that matches %s was found. Available and enabled accounts: %s\n' % (self.options.account, ', '.join(sorted(account.id for account in account_manager.get_accounts() if account.enabled)))) self.output.stop() self.stop() self.end_cancel_thread() return else: self.account = possible_accounts[0] notification_center.add_observer(self, sender=self.account) if isinstance(self.account, Account) and self.target is None: self.account.sip.register = True self.account.presence.enabled = False self.account.xcap.enabled = False self.account.message_summary.enabled = False self.output.put('Using account %s\n' % self.account.id) self.logger.start() if settings.logs.trace_sip and self.logger._siptrace_filename is not None: self.output.put('Logging SIP trace to file "%s"\n' % self.logger._siptrace_filename) if settings.logs.trace_pjsip and self.logger._pjsiptrace_filename is not None: self.output.put('Logging PJSIP trace to file "%s"\n' % self.logger._pjsiptrace_filename) if settings.logs.trace_notifications and self.logger._notifications_filename is not None: self.output.put('Logging notifications trace to file "%s"\n' % self.logger._notifications_filename) if self.options.disable_sound: settings.audio.input_device = None settings.audio.output_device = None settings.audio.alert_device = None if self.options.enable_default_devices: settings.audio.input_device = 'system_default' settings.audio.output_device = 'system_default' settings.audio.alert_device = 'system_default' def _NH_SIPApplicationDidStart(self, notification): engine = Engine() settings = SIPSimpleSettings() engine.trace_sip = self.logger.sip_to_stdout or settings.logs.trace_sip engine.log_level = settings.logs.pjsip_level if (self.logger.pjsip_to_stdout or settings.logs.trace_pjsip) else 0 self.ip_address_monitor.start() self.output.put('Available audio input devices: %s\n' % ', '.join(['None', 'system_default'] + sorted(engine.input_devices))) self.output.put('Available audio output devices: %s\n' % ', '.join(['None', 'system_default'] + sorted(engine.output_devices))) + if engine.video_devices: + self.output.put('Available cameras: %s\n' % ', '.join(sorted(engine.video_devices))) + else: + if self.enable_video: + self.output.put('No camera present, video is disabled') + self.enable_video = False if self.voice_audio_mixer.input_device == 'system_default': self.output.put('Using audio input device: %s (system default device)\n' % self.voice_audio_mixer.real_input_device) else: self.output.put('Using audio input device: %s\n' % self.voice_audio_mixer.input_device) if self.voice_audio_mixer.output_device == 'system_default': self.output.put('Using audio output device: %s (system default device)\n' % self.voice_audio_mixer.real_output_device) else: self.output.put('Using audio output device: %s\n' % self.voice_audio_mixer.output_device) if self.alert_audio_mixer.output_device == 'system_default': self.output.put('Using audio alert device: %s (system default device)\n' % self.alert_audio_mixer.real_output_device) else: self.output.put('Using audio alert device: %s\n' % self.alert_audio_mixer.output_device) if not self.batch_mode: self.print_help() inbound_ringtone = self.account.sounds.audio_inbound.sound_file if self.account.sounds.audio_inbound is not None else None outbound_ringtone = settings.sounds.audio_outbound if inbound_ringtone: self.wave_inbound_ringtone = WavePlayer(self.alert_audio_mixer, inbound_ringtone.path.normalized, volume=inbound_ringtone.volume, loop_count=0, pause_time=2) self.alert_audio_bridge.add(self.wave_inbound_ringtone) if outbound_ringtone: self.wave_outbound_ringtone = WavePlayer(self.voice_audio_mixer, outbound_ringtone.path.normalized, volume=outbound_ringtone.volume, loop_count=0, pause_time=2) self.voice_audio_bridge.add(self.wave_outbound_ringtone) self.tone_ringtone = WavePlayer(self.voice_audio_mixer, ResourcePath('sounds/ring_tone.wav').normalized, loop_count=0, pause_time=6) self.voice_audio_bridge.add(self.tone_ringtone) self.hold_tone = WavePlayer(self.voice_audio_mixer, ResourcePath('sounds/hold_tone.wav').normalized, loop_count=0, pause_time=30, volume=50) self.voice_audio_bridge.add(self.hold_tone) if self.target is not None: if isinstance(self.account, BonjourAccount) and '@' not in self.target: self.output.put('Bonjour mode requires a host in the destination address\n') self.stop() self.end_cancel_thread() return if '@' not in self.target: self.target = '%s@%s' % (self.target, self.account.id.domain) if not self.target.startswith('sip:') and not self.target.startswith('sips:'): self.target = 'sip:' + self.target try: self.target = SIPURI.parse(self.target) except SIPCoreError: self.output.put('Illegal SIP URI: %s\n' % self.target) self.stop() else: if '.' not in self.target.host and not isinstance(self.account, BonjourAccount): self.target.host = '%s.%s' % (self.target.host, self.account.id.domain) lookup = DNSLookup() notification_center = NotificationCenter() settings = SIPSimpleSettings() notification_center.add_observer(self, sender=lookup) if isinstance(self.account, Account) and self.account.sip.outbound_proxy is not None: uri = SIPURI(host=self.account.sip.outbound_proxy.host, port=self.account.sip.outbound_proxy.port, parameters={'transport': self.account.sip.outbound_proxy.transport}) elif isinstance(self.account, Account) and self.account.sip.always_use_my_proxy: uri = SIPURI(host=self.account.id.domain) else: uri = self.target self.session_spool_dir = self.spool_dir + "/" + (self.options.external_id or str(uuid.uuid1())) lookup.lookup_sip_proxy(uri, settings.sip.transport_list) try: makedirs(self.session_spool_dir) except Exception as e: log.error('Failed to create session spool directory at {directory}: {exception!s}'.format(directory=self.session_spool_dir, exception=e)) else: if self.stop_call_thread is None: self.stop_call_thread = CancelThread(self) self.stop_call_thread.start() self.output.put("To stop the call: touch %s/stop\n" % self.session_spool_dir) def _NH_SIPApplicationWillEnd(self, notification): if isinstance(self.account, Account): self.account.sip.register = False self.ip_address_monitor.stop() def _NH_SIPApplicationDidEnd(self, notification): if self.input: self.input.stop() self.output.stop() self.output.join() def _NH_SIPEngineDetectedNATType(self, notification): SIPApplication._NH_SIPEngineDetectedNATType(self, notification) if notification.data.succeeded: self.output.put('Detected NAT type: %s\n' % notification.data.nat_type) def _NH_SIPApplicationGotInput(self, notification): engine = Engine() notification_center = NotificationCenter() settings = SIPSimpleSettings() if notification.data.input == '\x04': if self.active_session is not None: self.output.put('Ending audio session...\n') self.active_session.end() elif self.outgoing_session is not None: self.output.put('Cancelling audio session...\n') self.outgoing_session.end() else: self.stop() self.end_cancel_thread() elif notification.data.input == '?': self.print_help() elif notification.data.input in ('y', 'n') and self.incoming_sessions: + accepted_types = ['video', 'audio'] if self.enable_video else ['audio'] session = self.incoming_sessions.pop(0) if notification.data.input == 'y': - session.accept([stream for stream in session.proposed_streams if stream.type == 'audio']) + session.accept([stream for stream in session.proposed_streams if stream.type in accepted_types]) else: session.reject() elif notification.data.input == 'm': self.voice_audio_mixer.muted = not self.voice_audio_mixer.muted self.output.put('The microphone is now %s\n' % ('muted' if self.voice_audio_mixer.muted else 'unmuted')) elif notification.data.input == 'i': input_devices = [None, u'system_default'] + sorted(engine.input_devices) if self.voice_audio_mixer.input_device in input_devices: old_input_device = self.voice_audio_mixer.input_device else: old_input_device = None tail_length = settings.audio.echo_canceller.tail_length if settings.audio.echo_canceller.enabled else 0 new_input_device = input_devices[(input_devices.index(old_input_device)+1) % len(input_devices)] try: self.voice_audio_mixer.set_sound_devices(new_input_device, self.voice_audio_mixer.output_device, tail_length) except SIPCoreError, e: self.output.put('Failed to set input device to %s: %s\n' % (new_input_device, str(e))) else: if new_input_device == u'system_default': - self.output.put('Input device changed to %s (system default device)\n' % self.voice_audio_mixer.real_input_device) + self.output.put('Audio input device changed to %s (system default device)\n' % self.voice_audio_mixer.real_input_device) else: - self.output.put('Input device changed to %s\n' % new_input_device) + self.output.put('Audio input device changed to %s\n' % new_input_device) elif notification.data.input == 'o': output_devices = [None, u'system_default'] + sorted(engine.output_devices) if self.voice_audio_mixer.output_device in output_devices: old_output_device = self.voice_audio_mixer.output_device else: old_output_device = None tail_length = settings.audio.echo_canceller.tail_length if settings.audio.echo_canceller.enabled else 0 new_output_device = output_devices[(output_devices.index(old_output_device)+1) % len(output_devices)] try: self.voice_audio_mixer.set_sound_devices(self.voice_audio_mixer.input_device, new_output_device, tail_length) except SIPCoreError, e: self.output.put('Failed to set output device to %s: %s\n' % (new_output_device, str(e))) else: if new_output_device == u'system_default': - self.output.put('Output device changed to %s (system default device)\n' % self.voice_audio_mixer.real_output_device) + self.output.put('Audio output device changed to %s (system default device)\n' % self.voice_audio_mixer.real_output_device) else: - self.output.put('Output device changed to %s\n' % new_output_device) + self.output.put('Audio output device changed to %s\n' % new_output_device) elif notification.data.input == 'a': output_devices = [None, u'system_default'] + sorted(engine.output_devices) if self.alert_audio_mixer.output_device in output_devices: old_output_device = self.alert_audio_mixer.output_device else: old_output_device = None tail_length = settings.audio.echo_canceller.tail_length if settings.audio.echo_canceller.enabled else 0 new_output_device = output_devices[(output_devices.index(old_output_device)+1) % len(output_devices)] try: self.alert_audio_mixer.set_sound_devices(self.alert_audio_mixer.input_device, new_output_device, tail_length) except SIPCoreError, e: self.output.put('Failed to set alert device to %s: %s\n' % (new_output_device, str(e))) else: if new_output_device == u'system_default': - self.output.put('Alert device changed to %s (system default device)\n' % self.alert_audio_mixer.real_output_device) + self.output.put('Audio alert device changed to %s (system default device)\n' % self.alert_audio_mixer.real_output_device) else: - self.output.put('Alert device changed to %s\n' % new_output_device) + self.output.put('Audio alert device changed to %s\n' % new_output_device) elif notification.data.input == 'h': if self.active_session is not None: self.output.put('Ending audio session...\n') self.active_session.end() elif self.outgoing_session is not None: self.output.put('Cancelling audio session...\n') self.outgoing_session.end() elif notification.data.input == ' ': if self.active_session is not None: if self.active_session.on_hold: self.active_session.unhold() else: self.active_session.hold() elif notification.data.input in ('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '*', '#', 'A', 'B', 'C', 'D'): if self.active_session is not None: try: audio_stream = self.active_session.streams[0] except IndexError: pass else: digit = notification.data.input filename = 'sounds/dtmf_%s_tone.wav' % {'*': 'star', '#': 'pound'}.get(digit, digit) wave_player = WavePlayer(self.voice_audio_mixer, ResourcePath(filename).normalized) notification_center.add_observer(self, sender=wave_player) audio_stream.send_dtmf(digit) if self.active_session.account.rtp.inband_dtmf: audio_stream.bridge.add(wave_player) self.voice_audio_bridge.add(wave_player) wave_player.start() elif notification.data.input in ('\x1b[A', '\x1b[D') and len(self.started_sessions) > 0: # UP and LEFT if self.active_session is None: self.active_session = self.started_sessions[0] self.active_session.unhold() self.ignore_local_unhold = True elif len(self.started_sessions) > 1: self.active_session.hold() self.active_session = self.started_sessions[self.started_sessions.index(self.active_session)-1] self.active_session.unhold() self.ignore_local_unhold = True else: return identity = str(self.active_session.remote_identity.uri) if self.active_session.remote_identity.display_name: identity = '"%s" <%s>' % (self.active_session.remote_identity.display_name, identity) self.output.put('Active audio session: "%s" (%d/%d)\n' % (identity, self.started_sessions.index(self.active_session)+1, len(self.started_sessions))) elif notification.data.input in ('\x1b[B', '\x1b[C') and len(self.started_sessions) > 0: # DOWN and RIGHT if self.active_session is None: self.active_session = self.started_sessions[0] self.active_session.unhold() self.ignore_local_unhold = True elif len(self.started_sessions) > 1: self.active_session.hold() self.active_session = self.started_sessions[(self.started_sessions.index(self.active_session)+1) % len(self.started_sessions)] self.active_session.unhold() self.ignore_local_unhold = True else: return identity = str(self.active_session.remote_identity.uri) if self.active_session.remote_identity.display_name: identity = '"%s" <%s>' % (self.active_session.remote_identity.display_name, identity) self.output.put('Active audio session: "%s" (%d/%d)\n' % (identity, self.started_sessions.index(self.active_session)+1, len(self.started_sessions))) elif notification.data.input == 'r': if self.active_session is None or not self.active_session.streams: return session = self.active_session audio_stream = self.active_session.streams[0] if audio_stream.recorder is not None: audio_stream.stop_recording() else: direction = session.direction remote = "%s@%s" % (session.remote_identity.uri.user, session.remote_identity.uri.host) filename = "%s-%s-%s.wav" % (datetime.now().strftime("%Y%m%d-%H%M%S"), remote, direction) path = os.path.join(settings.audio.directory.normalized, session.account.id) audio_stream.start_recording(os.path.join(path, filename)) elif notification.data.input == 'p': if self.rtp_statistics is None: self.rtp_statistics = RTPStatisticsThread(self) self.rtp_statistics.start() self.output.put('Output of RTP statistics on console is now activated\n') else: self.rtp_statistics.stop() self.rtp_statistics = None self.output.put('Output of RTP statistics on console is now dectivated\n') elif notification.data.input == 'j': self.logger.pjsip_to_stdout = not self.logger.pjsip_to_stdout engine.log_level = settings.logs.pjsip_level if (self.logger.pjsip_to_stdout or settings.logs.trace_pjsip) else 0 self.output.put('PJSIP tracing to console is now %s\n' % ('activated' if self.logger.pjsip_to_stdout else 'deactivated')) elif notification.data.input == 'n': self.logger.notifications_to_stdout = not self.logger.notifications_to_stdout self.output.put('Notification tracing to console is now %s.\n' % ('activated' if self.logger.notifications_to_stdout else 'deactivated')) elif notification.data.input == 's': self.logger.sip_to_stdout = not self.logger.sip_to_stdout engine.trace_sip = self.logger.sip_to_stdout or settings.logs.trace_sip self.output.put('SIP tracing to console is now %s\n' % ('activated' if self.logger.sip_to_stdout else 'deactivated')) def _NH_SIPEngineGotException(self, notification): self.output.put('An exception occured within the SIP core:\n%s\n' % notification.data.traceback) def _NH_SIPAccountRegistrationDidSucceed(self, notification): if self.registration_succeeded: return contact_header = notification.data.contact_header contact_header_list = notification.data.contact_header_list expires = notification.data.expires registrar = notification.data.registrar message = '%s Registered contact "%s" for sip:%s at %s:%d;transport=%s (expires in %d seconds).\n' % (datetime.now().replace(microsecond=0), contact_header.uri, self.account.id, registrar.address, registrar.port, registrar.transport, expires) if len(contact_header_list) > 1: message += 'Other registered contacts:\n%s\n' % '\n'.join([' %s (expires in %s seconds)' % (str(other_contact_header.uri), other_contact_header.expires) for other_contact_header in contact_header_list if other_contact_header.uri != notification.data.contact_header.uri]) self.output.put(message) self.registration_succeeded = True def _NH_SIPAccountRegistrationDidFail(self, notification): self.output.put('%s Failed to register contact for sip:%s: %s (retrying in %.2f seconds)\n' % (datetime.now().replace(microsecond=0), self.account.id, notification.data.error, notification.data.retry_after)) self.registration_succeeded = False def _NH_SIPAccountRegistrationDidEnd(self, notification): self.output.put('%s Registration ended.\n' % datetime.now().replace(microsecond=0)) def _NH_BonjourAccountRegistrationDidSucceed(self, notification): self.output.put('%s Registered Bonjour contact "%s"\n' % (datetime.now().replace(microsecond=0), notification.data.name)) def _NH_BonjourAccountRegistrationDidFail(self, notification): self.output.put('%s Failed to register Bonjour contact: %s\n' % (datetime.now().replace(microsecond=0), notification.data.reason)) def _NH_BonjourAccountRegistrationDidEnd(self, notification): self.output.put('%s Registration ended.\n' % datetime.now().replace(microsecond=0)) def _NH_BonjourAccountDidAddNeighbour(self, notification): neighbour, record = notification.data.neighbour, notification.data.record now = datetime.now().replace(microsecond=0) self.output.put('%s Discovered Bonjour neighbour: "%s (%s)" <%s>\n' % (now, record.name, record.host, record.uri)) self.neighbours[neighbour] = BonjourNeighbour(neighbour, record.uri, record.name, record.host) def _NH_BonjourAccountDidUpdateNeighbour(self, notification): neighbour, record = notification.data.neighbour, notification.data.record now = datetime.now().replace(microsecond=0) try: bonjour_neighbour = self.neighbours[neighbour] except KeyError: self.output.put('%s Discovered Bonjour neighbour: "%s (%s)" <%s>\n' % (now, record.name, record.host, record.uri)) self.neighbours[neighbour] = BonjourNeighbour(neighbour, record.uri, record.name, record.host) else: self.output.put('%s Updated Bonjour neighbour: "%s (%s)" <%s>\n' % (now, record.name, record.host, record.uri)) bonjour_neighbour.display_name = record.name bonjour_neighbour.host = record.host bonjour_neighbour.uri = record.uri def _NH_BonjourAccountDidRemoveNeighbour(self, notification): neighbour = notification.data.neighbour now = datetime.now().replace(microsecond=0) try: bonjour_neighbour = self.neighbours.pop(neighbour) except KeyError: pass else: self.output.put('%s Bonjour neighbour left: "%s (%s)" <%s>\n' % (now, bonjour_neighbour.display_name, bonjour_neighbour.host, bonjour_neighbour.uri)) def _NH_DNSLookupDidSucceed(self, notification): notification_center = NotificationCenter() result_text = ', '.join(('%s:%s (%s)' % (result.address, result.port, result.transport.upper()) for result in notification.data.result)) self.output.put(u"\nDNS lookup for %s succeeded: %s\n" % (self.target.host, result_text)) if self.end_session_if_needed(): self.stop() self.end_cancel_thread() self.outgoing_session = session = Session(self.account) notification_center.add_observer(self, sender=session) - session.connect(ToHeader(self.target), routes=notification.data.result, streams=[MediaStreamRegistry.AudioStream()]) + streams = [MediaStreamRegistry.AudioStream(), MediaStreamRegistry.VideoStream()] if self.enable_video else [MediaStreamRegistry.AudioStream()] + session.connect(ToHeader(self.target), routes=notification.data.result, streams=streams) def _NH_DNSLookupDidFail(self, notification): self.output.put('DNS lookup failed: %s\n' % notification.data.error) self.stop() self.end_cancel_thread() def auto_answer_allowed(self, uri): if not self.options.auto_answer_uris: self.output.put('Auto answer allowed for %s\n' % uri) return True uri = uri.split(":")[1] auto_answer_uris = self.options.auto_answer_uris.split(",") if uri in auto_answer_uris: self.output.put('Auto answer allowed for %s\n' % uri) return True self.output.put('Auto answer denied for %s\n' % uri) return False def _NH_SIPSessionNewIncoming(self, notification): session = notification.sender for stream in notification.data.streams: if stream.type == 'audio': break else: session.reject(415) return self.session_spool_dir = self.spool_dir + "/" + str(uuid.uuid1()) try: makedirs(self.session_spool_dir) except Exception as e: log.error('Failed to create session spool directory at {directory}: {exception!s}'.format(directory=self.session_spool_dir, exception=e)) else: if self.stop_call_thread is None: self.stop_call_thread = CancelThread(self) self.stop_call_thread.start() self.output.put("To stop the call: touch %s/stop\n" % self.session_spool_dir) notification_center = NotificationCenter() notification_center.add_observer(self, sender=session) + accepted_types = ['video', 'audio'] if self.enable_video else ['audio'] + if self.options.auto_answer_interval is not None and self.auto_answer_allowed(str(session.remote_identity.uri)): if self.options.auto_answer_interval == 0: - session.accept([stream for stream in session.proposed_streams if stream.type == 'audio']) + session.accept([stream for stream in session.proposed_streams if stream.type in accepted_types]) return else: def auto_answer(): self.incoming_sessions.remove(session) - session.accept([stream for stream in session.proposed_streams if stream.type == 'audio']) + session.accept([stream for stream in session.proposed_streams if stream.type in accepted_types]) timer = reactor.callLater(self.options.auto_answer_interval, auto_answer) self.answer_timers[id(session)] = timer session.send_ring_indication() self.incoming_sessions.append(session) if len(self.incoming_sessions) == 1: self._print_new_session() if not self.started_sessions: if self.wave_inbound_ringtone: self.wave_inbound_ringtone.start() else: self.tone_ringtone.start() def _NH_SIPSessionNewOutgoing(self, notification): session = notification.sender local_identity = str(session.local_identity.uri) if session.local_identity.display_name: local_identity = '"%s" <%s>' % (session.local_identity.display_name, local_identity) remote_identity = str(session.remote_identity.uri) if session.remote_identity.display_name: remote_identity = '"%s" <%s>' % (session.remote_identity.display_name, remote_identity) - self.output.put("Initiating SIP audio session from '%s' to '%s' via %s...\n" % (local_identity, remote_identity, session.route)) + self.output.put("Initiating SIP %s session from '%s' to '%s' via %s...\n" % ('video' if self.enable_video else 'audio', local_identity, remote_identity, session.route)) def _NH_SIPSessionGotRingIndication(self, notification): if self.wave_outbound_ringtone: self.wave_outbound_ringtone.start() def _NH_SIPSessionDidFail(self, notification): session = notification.sender if session.direction == 'incoming' and session in self.incoming_sessions: if self.wave_inbound_ringtone: self.wave_inbound_ringtone.stop() self.tone_ringtone.stop() elif session.direction == 'outgoing': if self.wave_outbound_ringtone: self.wave_outbound_ringtone.stop() if notification.data.failure_reason == 'Call completed elsewhere' or notification.data.code == 487: - self.output.put('Audio session cancelled\n') + self.output.put('Session cancelled\n') if session is self.outgoing_session: self.stop() self.end_cancel_thread() if session in self.incoming_sessions: self.incoming_sessions.remove(session) elif notification.data.failure_reason == 'user request': - self.output.put('Audio session rejected by user (%d %s)\n' % (notification.data.code, notification.data.reason)) + self.output.put('Session rejected by user (%d %s)\n' % (notification.data.code, notification.data.reason)) if notification.sender is self.outgoing_session: self.stop() self.end_cancel_thread() else: - self.output.put('Audio session failed: %s\n' % notification.data.failure_reason) + self.output.put('Session failed: %s\n' % notification.data.failure_reason) if session is self.outgoing_session: self.stop() self.end_cancel_thread() if id(session) in self.answer_timers: timer = self.answer_timers[id(session)] if timer.active(): timer.cancel() del self.answer_timers[id(session)] if self.incoming_sessions: self._print_new_session() elif session.direction == 'incoming': if self.wave_inbound_ringtone: self.wave_inbound_ringtone.stop() self.tone_ringtone.stop() self.success = False def _NH_SIPSessionWillStart(self, notification): session = notification.sender if session.direction == 'incoming': if self.wave_inbound_ringtone: self.wave_inbound_ringtone.stop() if not self.incoming_sessions: self.tone_ringtone.stop() else: if self.wave_outbound_ringtone: self.wave_outbound_ringtone.stop() if id(session) in self.answer_timers: timer = self.answer_timers[id(session)] if timer.active(): timer.cancel() del self.answer_timers[id(session)] def _NH_SIPSessionDidStart(self, notification): notification_center = NotificationCenter() session = notification.sender + self.output.put('Session started with %d streams' % len(notification.data.streams)) + if session.remote_user_agent is not None: + self.output.put('Remote SIP User Agent is "%s"\n' % session.remote_user_agent) + audio_stream = notification.data.streams[0] - self.output.put('Audio session established using "%s" codec at %sHz\n' % (audio_stream.codec, audio_stream.sample_rate)) + self.output.put('Audio stream established using "%s" codec at %sHz\n' % (audio_stream.codec, audio_stream.sample_rate)) + if audio_stream.ice_active: self.output.put('Audio RTP endpoints %s:%d (ICE type %s) <-> %s:%d (ICE type %s)\n' % (audio_stream.local_rtp_address, audio_stream.local_rtp_port, audio_stream.local_rtp_candidate.type.lower(), audio_stream.remote_rtp_address, audio_stream.remote_rtp_port, audio_stream.remote_rtp_candidate.type.lower())) else: self.output.put('Audio RTP endpoints %s:%d <-> %s:%d\n' % (audio_stream.local_rtp_address, audio_stream.local_rtp_port, audio_stream.remote_rtp_address, audio_stream.remote_rtp_port)) if audio_stream.encryption.active: self.output.put('RTP audio stream is encrypted using %s (%s)\n' % (audio_stream.encryption.type, audio_stream.encryption.cipher)) - if session.remote_user_agent is not None: - self.output.put('Remote SIP User Agent is "%s"\n' % session.remote_user_agent) + + try: + video_stream = notification.data.streams[1] + except IndexError: + video_stream = None + else: + self.output.put('Video stream established using "%s" codec at %sHz\n' % (video_stream.codec, video_stream.sample_rate)) + if video_stream.ice_active: + self.output.put('Video RTP endpoints %s:%d (ICE type %s) <-> %s:%d (ICE type %s)\n' % (video_stream.local_rtp_address, + video_stream.local_rtp_port, + video_stream.local_rtp_candidate.type.lower(), + video_stream.remote_rtp_address, + video_stream.remote_rtp_port, + video_stream.remote_rtp_candidate.type.lower())) + else: + self.output.put('Video RTP endpoints %s:%d <-> %s:%d\n' % (video_stream.local_rtp_address, video_stream.local_rtp_port, video_stream.remote_rtp_address, video_stream.remote_rtp_port)) + if video_stream.encryption.active: + self.output.put('RTP video stream is encrypted using %s (%s)\n' % (video_stream.encryption.type, video_stream.encryption.cipher)) + self.started_sessions.append(session) if self.active_session is not None: self.active_session.hold() self.active_session = session if len(self.started_sessions) > 1: message = 'Connected sessions:\n' for session in self.started_sessions: identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) - message += ' Audio session %s (%d/%d) - %s\n' % (identity, self.started_sessions.index(session)+1, len(self.started_sessions), 'active' if session is self.active_session else 'on hold') + message += ' Session %s (%d/%d) - %s\n' % (identity, self.started_sessions.index(session)+1, len(self.started_sessions), 'active' if session is self.active_session else 'on hold') message += 'Press arrow keys to switch the active session\n' self.output.put(message) + if self.incoming_sessions: self.tone_ringtone.start() self._print_new_session() + for stream in notification.data.streams: notification_center.add_observer(self, sender=stream) + if self.options.auto_hangup_interval is not None: if self.options.auto_hangup_interval == 0: session.end() else: timer = reactor.callLater(self.options.auto_hangup_interval, session.end) self.hangup_timers[id(session)] = timer def _NH_SIPSessionWillEnd(self, notification): notification_center = NotificationCenter() session = notification.sender if id(session) in self.hangup_timers: timer = self.hangup_timers[id(session)] if timer.active(): timer.cancel() del self.hangup_timers[id(session)] hangup_tone = WavePlayer(self.voice_audio_mixer, ResourcePath('sounds/hangup_tone.wav').normalized) notification_center.add_observer(self, sender=hangup_tone) self.voice_audio_bridge.add(hangup_tone) hangup_tone.start() def end_session_if_needed(self): if not self.session_spool_dir: return False stop_call_file = self.session_spool_dir + "/stop" if stop_call_file and os.path.exists(stop_call_file): if self.active_session is not None: self.output.put('Ending audio session...\n') self.active_session.end() elif self.outgoing_session is not None: self.outgoing_session.end() elif self.incoming_sessions: session = self.incoming_sessions.pop(0) session.reject() return True return False def end_cancel_thread(self): if self.stop_call_thread is not None: self.stop_call_thread.stop() self.stop_call_thread = None if self.session_spool_dir: try: shutil.rmtree(self.session_spool_dir) except OSError: pass self.session_spool_dir = None def _NH_SIPSessionDidEnd(self, notification): self.end_cancel_thread() session = notification.sender if session is not self.active_session: identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) else: identity = '\b' if notification.data.end_reason == 'user request': - self.output.put('Audio session %s ended by %s party\n' % (identity, notification.data.originator)) + self.output.put('Session %s ended by %s party\n' % (identity, notification.data.originator)) else: - self.output.put('Audio session %s ended due to error: %s\n' % (identity, notification.data.end_reason)) + self.output.put('Session %s ended due to error: %s\n' % (identity, notification.data.end_reason)) duration = session.end_time - session.start_time seconds = duration.seconds if duration.microseconds < 500000 else duration.seconds+1 minutes, seconds = seconds / 60, seconds % 60 hours, minutes = minutes / 60, minutes % 60 hours += duration.days*24 if not minutes and not hours: duration_text = '%d seconds' % seconds elif not hours: duration_text = '%02d:%02d' % (minutes, seconds) else: duration_text = '%02d:%02d:%02d' % (hours, minutes, seconds) self.output.put('Session duration was %s\n' % duration_text) self.started_sessions.remove(session) if session is self.active_session: if self.started_sessions: self.active_session = self.started_sessions[0] self.active_session.unhold() self.ignore_local_unhold = True identity = str(self.active_session.remote_identity.uri) if self.active_session.remote_identity.display_name: identity = '"%s" <%s>' % (self.active_session.remote_identity.display_name, identity) self.output.put('Active audio session: "%s" (%d/%d)\n' % (identity, self.started_sessions.index(self.active_session)+1, len(self.started_sessions))) else: self.active_session = None if session is self.outgoing_session: self.stop() self.end_cancel_thread() on_hold_streams = [stream for stream in chain(*(session.streams for session in self.started_sessions)) if stream.on_hold] if not on_hold_streams and self.hold_tone.is_active: self.hold_tone.stop() self.success = True def _NH_SIPSessionDidChangeHoldState(self, notification): session = notification.sender if notification.data.on_hold: if notification.data.originator == 'remote': if session is self.active_session: self.output.put('Remote party has put the audio session on hold\n') else: identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) self.output.put('%s has put the audio session on hold\n' % identity) elif not self.ignore_local_hold: if session is self.active_session: - self.output.put('Audio session is put on hold\n') + self.output.put('Session is put on hold\n') else: identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) - self.output.put('Audio session %s is put on hold\n' % identity) + self.output.put('Session %s is put on hold\n' % identity) else: self.ignore_local_hold = False else: if notification.data.originator == 'remote': if session is self.active_session: self.output.put('Remote party has taken the audio session out of hold\n') else: identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) self.output.put('%s has taken the audio session out of hold\n' % identity) elif not self.ignore_local_unhold: if session is self.active_session: - self.output.put('Audio session is taken out of hold\n') + self.output.put('Session is taken out of hold\n') else: identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) - self.output.put('Audio session %s is taken out of hold\n' % identity) + self.output.put('Session %s is taken out of hold\n' % identity) else: self.ignore_local_unhold = False def _NH_SIPSessionNewProposal(self, notification): if notification.data.originator == 'remote': session = notification.sender - audio_streams = [stream for stream in notification.data.proposed_streams if stream.type == 'audio'] + accepted_types = ['video', 'audio'] if self.enable_video else ['audio'] + audio_streams = [stream for stream in notification.data.proposed_streams if stream.type in accepted_types] if audio_streams: session.accept_proposal(audio_streams) else: session.reject_proposal(488) def _NH_AudioStreamGotDTMF(self, notification): notification_center = NotificationCenter() digit = notification.data.digit filename = 'sounds/dtmf_%s_tone.wav' % {'*': 'star', '#': 'pound'}.get(digit, digit) wave_player = WavePlayer(self.voice_audio_mixer, ResourcePath(filename).normalized) notification_center.add_observer(self, sender=wave_player) self.voice_audio_bridge.add(wave_player) wave_player.start() def _NH_RTPStreamDidChangeHoldState(self, notification): if notification.data.on_hold: if not self.hold_tone.is_active: self.hold_tone.start() else: on_hold_streams = [stream for stream in chain(*(session.streams for session in self.started_sessions)) if stream is not notification.sender and stream.on_hold] if not on_hold_streams and self.hold_tone.is_active: self.hold_tone.stop() def _NH_RTPStreamDidChangeRTPParameters(self, notification): stream = notification.sender self.output.put('Audio RTP parameters changed:\n') self.output.put('Audio stream using "%s" codec at %sHz\n' % (stream.codec, stream.sample_rate)) self.output.put('Audio RTP endpoints %s:%d <-> %s:%d\n' % (stream.local_rtp_address, stream.local_rtp_port, stream.remote_rtp_address, stream.remote_rtp_port)) if stream.encryption.active: self.output.put('RTP audio stream is encrypted using %s (%s)\n' % (stream.encryption.type, stream.encryption.cipher)) def _NH_AudioStreamDidStartRecordingAudio(self, notification): self.output.put('Recording audio to %s\n' % notification.data.filename) def _NH_AudioStreamDidStopRecordingAudio(self, notification): self.output.put('Stopped recording audio to %s\n' % notification.data.filename) def _NH_WavePlayerDidEnd(self, notification): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=notification.sender) def _NH_WavePlayerDidFail(self, notification): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=notification.sender) self.output.put('Failed to play %s: %s' % (notification.sender.filename, notification.data.error)) def _NH_DefaultAudioDeviceDidChange(self, notification): SIPApplication._NH_DefaultAudioDeviceDidChange(self, notification) if notification.data.changed_input and self.voice_audio_mixer.input_device=='system_default': self.output.put('Switched default input device to: %s\n' % self.voice_audio_mixer.real_input_device) if notification.data.changed_output and self.voice_audio_mixer.output_device=='system_default': self.output.put('Switched default output device to: %s\n' % self.voice_audio_mixer.real_output_device) if notification.data.changed_output and self.alert_audio_mixer.output_device=='system_default': self.output.put('Switched alert device to: %s\n' % self.alert_audio_mixer.real_output_device) def _NH_AudioDevicesDidChange(self, notification): old_devices = set(notification.data.old_devices) new_devices = set(notification.data.new_devices) added_devices = new_devices - old_devices removed_devices = old_devices - new_devices changed_input_device = self.voice_audio_mixer.real_input_device in removed_devices changed_output_device = self.voice_audio_mixer.real_output_device in removed_devices changed_alert_device = self.alert_audio_mixer.real_output_device in removed_devices SIPApplication._NH_AudioDevicesDidChange(self, notification) if added_devices: self.output.put('Added audio device(s): %s\n' % ', '.join(sorted(added_devices))) if removed_devices: self.output.put('Removed audio device(s): %s\n' % ', '.join(sorted(removed_devices))) if changed_input_device: - self.output.put('Input device has been switched to: %s\n' % self.voice_audio_mixer.real_input_device) + self.output.put('Audio input device has been switched to: %s\n' % self.voice_audio_mixer.real_input_device) if changed_output_device: - self.output.put('Output device has been switched to: %s\n' % self.voice_audio_mixer.real_output_device) + self.output.put('Audio output device has been switched to: %s\n' % self.voice_audio_mixer.real_output_device) if changed_alert_device: - self.output.put('Alert device has been switched to: %s\n' % self.alert_audio_mixer.real_output_device) + self.output.put('Audio alert device has been switched to: %s\n' % self.alert_audio_mixer.real_output_device) self.output.put('Available audio input devices: %s\n' % ', '.join(['None', 'system_default'] + sorted(self.engine.input_devices))) self.output.put('Available audio output devices: %s\n' % ', '.join(['None', 'system_default'] + sorted(self.engine.output_devices))) def _NH_RTPStreamICENegotiationDidSucceed(self, notification): self.output.put("ICE negotiation succeeded in %s\n" % notification.data.duration) def _NH_RTPStreamICENegotiationDidFail(self, notification): self.output.put("ICE negotiation failed: %s\n" % notification.data.reason) def _print_new_session(self): session = self.incoming_sessions[0] identity = str(session.remote_identity.uri) if session.remote_identity.display_name: identity = '"%s" <%s>' % (session.remote_identity.display_name, identity) - self.output.put("Incoming audio session from '%s', do you want to accept? (y/n)\n" % identity) + + video_streams = [stream for stream in session.proposed_streams if stream.type in ['video']] + media_type = 'video' if video_streams else 'audio' + self.output.put("Incoming %s session from '%s', do you want to accept? (y/n)\n" % (media_type, identity)) def parse_handle_call_option(option, opt_str, value, parser, name): try: value = parser.rargs[0] except IndexError: value = 0 else: if value == '' or value[0] == '-': value = 0 else: try: value = int(value) except ValueError: value = 0 else: del parser.rargs[0] setattr(parser.values, name, value) if __name__ == '__main__': description = 'This script can sit idle waiting for an incoming audio session, or initiate an outgoing audio session to a SIP address. The program will close the session and quit when Ctrl+D is pressed.' usage = '%prog [options] [user@domain]' parser = OptionParser(usage=usage, description=description) parser.print_usage = parser.print_help parser.add_option('-a', '--account', type='string', dest='account', help='The account name to use for any outgoing traffic. If not supplied, the default account will be used.', metavar='NAME') parser.add_option('-c', '--config-directory', type='string', dest='config_directory', help='The configuration directory to use. This overrides the default location.') parser.add_option('-s', '--trace-sip', action='store_true', dest='trace_sip', default=False, help='Dump the raw contents of incoming and outgoing SIP messages.') parser.add_option('-j', '--trace-pjsip', action='store_true', dest='trace_pjsip', default=False, help='Print PJSIP logging output.') parser.add_option('-n', '--trace-notifications', action='store_true', dest='trace_notifications', default=False, help='Print all notifications (disabled by default).') parser.add_option('-S', '--disable-sound', action='store_true', dest='disable_sound', default=False, help='Disables initializing the sound card.') parser.set_default('auto_answer_interval', None) parser.add_option('--auto-answer', action='callback', callback=parse_handle_call_option, callback_args=('auto_answer_interval',), help='Interval after which to answer an incoming session (disabled by default). If the option is specified but the interval is not, it defaults to 0 (accept the session as soon as it starts ringing).', metavar='[INTERVAL]') parser.add_option('-u', '--auto-answer-uris', type='string', dest='auto_answer_uris', default="", help='Optional list of SIP URIs for which auto-answer is allowed') parser.add_option('-i', '--external-id', type='string', dest='external_id', help='id used for call control from external application') parser.add_option('-v', '--spool-dir', type='string', dest='spool_dir', default='/var/spool/sipclients/sessions', help='Spool dir for call control from external applications, default is /var/spool/sipclients/sessions') parser.add_option('-t', '--enable-default-devices', action='store_true', dest='enable_default_devices', help='Use default audio devices') + parser.add_option('-V', '--enable-video', action='store_true', dest='enable_video', default=False, help='Enable video if camera is available') parser.set_default('auto_hangup_interval', None) parser.add_option('--auto-hangup', action='callback', callback=parse_handle_call_option, callback_args=('auto_hangup_interval',), help='Interval after which to hang up an established session (disabled by default). If the option is specified but the interval is not, it defaults to 0 (hangup the session as soon as it connects).', metavar='[INTERVAL]') parser.add_option('-b', '--batch', action='store_true', dest='batch_mode', default=False, help='Run the program in batch mode: reading input from the console is disabled and the option --auto-answer is implied. This is particularly useful when running this script in a non-interactive environment.') parser.add_option('-d', '--daemonize', action='store_true', dest='daemonize', default=False, help='Enable running this program as a deamon.') options, args = parser.parse_args() target = args[0] if args and not options.auto_answer_uris else None application = SIPAudioApplication() application.start(target, options) signal.signal(signal.SIGINT, signal.SIG_DFL) application.output.join() sleep(0.1) sys.exit(0 if application.success else 1)