Complete change logs are available for ptlib and opal
Changes of note are:
- Improve detection of local Speex libraries so they are used instead of Opal-unique copy
- Allow remote SIP endpoints to select different payload codes for codecs
- Add ability to disable H.245 negotiation for a call
- Add ability to compile on MacOSX on Open Solaris
- Add SRV lookups for SIP
- Add image SDP type
- Port audio plugin manager from OpenH323
- Add support for video plugins
- Multiple changes to improve locking
- Add H.224/H.281 implementation
- Add H.460 support
- Add support for SIP Q.931 release code mapping as per RFC 3398
- Add support for multiple INVITEs
- Large updates to IAX code
- Make GSM codec adaptive to support MS-GSM format
- Add SRTP support
- Add support for SIP INFO
- Add SIP presence and RFC3856, RFC3903, RFC3863, RFC3265 support
- Add SIP T.38 support
- Add H.264 and H.263-1998 support