What vexes VoIP users?

Jay Ashworth jra at baylink.com
Wed Mar 2 08:23:09 CST 2011

----- Original Message -----
> From: "Michael Thomas" <mike at 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?

-- jra

More information about the NANOG mailing list