Fwd: RE: [amsat-bb] real-time digital protocols

[Anthony Monteiro <aa2tx@xxxxxxxxxxxx>]

>BTW 1: H.323 is really a collection of several underlying protocols and
>formats - call setup, control channel protocol, specific audio & video
>codecs, security, gateways etc etc - some of these are lots of reasons _not_
>to use H.323. It's also not only IP - although IP is the most popular
>transport. There's also other less established VoIP protocols than H.323
>such as SIP. H.323 is an ITU standard, SIP is IETF.

Just to clarify this, SIP is only a "Session Initiation Protocol" it is
not a VoIP protocol. It CAN be used for signaling (in place of Q.931 and RAS)
but all the actual "voice" and IP transport stuff is still needed.

Tony AA2TX


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