On Mon, 27 Nov 2006 10:42:01 +0100 Damien Sandras <[EMAIL PROTECTED]> wrote:
..deleted > Well, let's forget about that and summarize the results of that > discussion. There are actually right now 2 problems in OPAL : > > 1: Establishing the media streams after having sent or received the ACK > takes between 1 or 2 seconds during which the media stream is lost. This seems to be only a problem on Linux. I'm not seeing this problem on Windows. What is OPAL during the 1 or 2 seconds? Is this how long it takes to open the sound device on Linux? I'll need more information before I can work out how to fix the problem > 2: If OPAL sends an INVITE with 3 codecs in a given order, and that > Asterisk supports the 3 same codecs but with a different priority order, > it will send the 200 OK with those 3 codecs in the order it prefers. > OPAL will then choose the codec it prefers and send the media with that > codec. It could happen that Asterisk uses another codec from the list, > ie a codec for which OPAL is not ready to receive a stream. > > e.g. : > INVITE PCMU, iLBC, PCMA > 200 OK iLBC, PCMA, PCMU > > OPAL will send the stream using iLBC. > Asterisk could decide to send the stream using PCMU. > However OPAL expects iLBC... Replying to an INVITE with more than one codec has a very specific meaning, and OPAL does not support these semantics. Fortunately, very few devices seem to do this. Craig ----------------------------------------------------------------------- Craig Southeren Post Increment VoIP Consulting and Software [EMAIL PROTECTED] www.postincrement.com.au Phone: +61 243654666 ICQ: #86852844 Fax: +61 243656905 MSN: [EMAIL PROTECTED] Mobile: +61 417231046 Jabber: [EMAIL PROTECTED] "It takes a man to suffer ignorance and smile. Be yourself, no matter what they say." Sting _______________________________________________ ekiga-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/ekiga-list
