Sessions
--------

- Video aquisition sub-system [AK]
- Support for H.264 codec []


Middleware
----------

- Configuration changes listener [LS]
- FileTransfer high level class [LS]
- Desktop sharing high level class [AK]
- Capture MSRP trace as notifications [LS]
- MediaStream high level class [LS]
- Buddylist high-level class [LS]
- Video sessions high level class [AK]
- XCAP high level class [LS]
- Application sharing high level class [LS]
- Conference audio sessions [RK]
- Log XCAP messages [LS]
- Auto SUBSCRIBE event=conference when Contact header of remote party is focus [LS]
- Auto PUBLISH event=presence with device status when start/end audio session [LS]
- Auto PUBLISH event=dialog when enter/exit audio session [LS]
- Detect IP address changes (OS specific) and signal Engine [RK]
- Enrollment [LS]
- Generate TLS certificate for P2P mode on startup [LS]


SIP core
--------

- Make PJSIPUA.local_ip property writable and survive IP address changes [RK]
- Handle incoming SUBSCRIBE and REFER requests, uses dialogs [RK]
- Handle incoming REGISTER requests (simple transaction) [RK]
- Handle incoming OPTIONS requests (simple transaction) [RK]
- Handle sending and receiving of multipart bodies for Invitation [RK]
- Use STUN to determine the public contact used for REGISTER, low prio []
- Handle UPDATE for re-INVITE, low prio []
- Handle incoming REFER requests, low prio [RK]
- Implement frozen and normal variants of basic core objects to remove need [LS]
  for copying them on access [LS]
- Define objects to represent SIP headers [LS]


Notifications
-------------

- review notifications after we have all entities implemented.
- check if we should separate the DidEnd notifications from the concept that
  the object posting it is no longer usable and make a new notification
  for that. There is a distinction between the fact that a certain entity
  has ended its cycle of operation and the concept that the entity becomes
  unusable. For some these overlap for others they don't and using a given
  notification with multiple meanings can be confusing.


Audio
-----

- Revise conference bridge API to support mute and multiple rooms [RK]
  http://sipsimpleclient.com/wiki/AudioFeatures [RK]
- Comfort noise generator []
- zRTP []
- N810 maemo audio driver [LS]
- Improve Acoustic Echo Cancellation [TBD]


Instant messaging
-----------------

- Use MSRPServer class to share the listening port [LS]
- Support for rich text format compatible with XMPP clients []
- Is-composing payload []
- Anonymous URI multi-party chat support []
- Off-the-Record Messaging for IM [LS]


Presence
--------

- Conference event package [LS]
- Dialog event package http://tools.ietf.org/html/rfc4235 [LS]
- Contact information http://tools.ietf.org/html/rfc4482 [LS]
- Device capabilities http://tools.ietf.org/html/rfc5196 [LS]


Desktop sharing
---------------

- Properly re-implement RFB/VNC library [AK]
- Application (one window) sharing [AK]
- Past clipboard between parties [AK]
  See http://sipsimpleclient.com/attachment/wiki/SipContributions/sip_desktop_sharing.pdf


Other applications
------------------

- Message-summary payload [LS]
- Bonjour mDNS broadcast [LS]


Command line tools
------------------

- xcap_pidf_manipulation script [LS]
- sip_subscribe_conference script [LS]
 


Porting
-------

- Windows []
- iPhone []
- Symbian []