/* amsip is a SIP library for softphone (SIP -rfc3261-) Copyright (C) 2003, 2004, 2005, 2006 Aymeric MOIZARD - <firstname.lastname@example.org> */
04/02/2007 - 4.1.1 * add support for WM6.0 * fix expires header in 200ok for REGISTER and PUBLISH. * add some interop. fixes (hold/inactive/offhold and other...) * fix hold behavior: stream sound (sendonly) and stop video (inactive). * add capability to start call with video enabled. * add some new YUV formats for video. * video is now complete on macosx. 04/02/2007 - 4.1.0 * improve quality of sound and use of echo canceller. * improve & fix for player quality. * use directshow driver for video on windows. * fix DTMF timestamp & cseq value. * interop. fixes. * update version number in SDP offers. * fix using ICE with TCP. * add TLS and SRTP support. * add method to stop video. 04/02/2007 - 4.0.7 * minor interoperability fix. 04/02/2007 - 4.0.6 * update vbamsip to support 4 calls. * fix authentication when qop is present in 401/407 * transparent handling of OPTIONS request outside calls. * add feature to maintain fake DNS entries. * complete REFER related APIs. * new sound card selection API based on capture/playback capabilities. * fix for TCP handling. * video improvments on windows/linux. * sound improvments on windows. * fix dead lock under heavy load. 15/12/2006 - 4.0.5 * fix broken (application locked) method to receive dtmf. * most video capability working (H263, theora, MPV4-ES) * fix several player issue: now reported to work. * improve echo canceller with cards that can't provide data each 20ms * improve interoperability when Mime-Version is omitted. * improve conference manager by doing VAD on incoming streams. * add support for resampling between narrowband and wideband. * add support for audio streaming in wideband. * add support for switching codecs on the fly. * allow replacement of audio drivers and RTP manager. * initial video support. 06/11/2006 - 4.0.4 * improve audio scheduling on windows/wince * fix bugs when SDP is in 200ok/ACK * new player feature to play files locally on sound card. 18/10/2006 - 4.0.3 * restart played files after call modification (INVITEs/UPDATEs) * add capability to load plugins from a given directory. (windows) * windows mobile/smartphone support with VS2005 mostly working. * Visual Basic test application for windows CE: vbamsipua * Visual Basic test application for windows: vbamsip 8/09/2006 - 4.0.2 * add capability to load plugins from a given directory. (linux) * partial windows mobile/smartphone support with VS2005. 8/09/2006 - 4.0.1 * audio quality is back to normal. 8/09/2006 - 4.0.0j * API should now be frozen very soon. * echo canceller is working. * hold/offhold API is renamed. * RTP telephone-events are working. * Pre-Route set does not appear any more in message out of dialog. * version is candidate for beta. * lots of other changes. XX/08/2006 - 4.0.0h * fix bug when receiving SDP answer with unsupported codec as first codec. * add preprocessor to echo canceller. * add capability to enable/disable echo canceller. * add capability to stop recording before end of call. * add more flexible API for incoming/outgoing subscriptions. * complete API for sending/answering request within/without calls.