nanog mailing list archives

Re: What vexes VoIP users?


From: Jay Ashworth <jra () baylink com>
Date: Wed, 2 Mar 2011 09:23:09 -0500 (EST)

----- Original Message -----
From: "Michael Thomas" <mike () mtcc com>

Yes, really. The only difference was which L2 channels the RTP
packets were flowed onto, which was determined by the MGCP/SIP
signalling and interaction with the telephony gateway. There
is a **very** complicated state machine that deals with this
using some bastardized IETF protocols (COPS IIRC).

Ok, see, now I (like, I suspect, Frank Bulk) am confused again:

when you say "which L2 channels the RTP packets were flowed onto", that
sounds to me a *whole* lot like "which VLAN on the end-user drop carried
the RTP packets from the terminal adapter in their cable box to our
concentrator"... which is pretty much the point I was originally trying 
to make, if perhaps in slightly different terms.

Am I still misunderstanding you?

Cheers,
-- jra


Current thread: