> Some - few - providers are using IAX2 as a protocol. Most are using SIP. > I know that there are advantages of IAX2 regarding multiple connections. > But beside this I'm asking myself (and you all) why I should prefer IAX2 > when my SIP connection is working. > > Are there differences in the performance?
Generic answer: most of the sip providers require g711 which consumes about 80kb/s of bandwidth, and a fair number of those are non-asterisk based systems that don't have iax2 support. Most/all iax2 providers are asterisk based and typically support other codecs besides g711. Iax2 with gsm consumes roughly 30kb/s, which on a typical dsl broadband connection, is preferred by most asterisk users. There are several other technical advantages for iax2, one of which is its ability to carry multiple calls within a single packet reducing the IP overhead on the net. (Bigger bang for the broadband buck.) The downside of iax2 is that its not yet a standard (rfc or otherwise) and even though its gpl'ed, few non-asterisk systems have bothered to implement it as yet. _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
