I've looked through several config guides on implementing MGCP with an E1 and I keep finding the following restriction.
T1 and E1 protocols, such as QSIG, E1 R2, T1 FGD, and PRI NFAS, are not supported with MGCP only with H.323.
But I also find many configurations out there that look like they have this working. Can anybody shed some light on the subject? I have a 2821 in the UK that is running H.323 right now that I want to change over to MGCP. The E1, from what I'm told, is running QSig with Q.931. Would it be possible to convert to MGCP? and why is the above restriction always mentioned by Cisco?
Out of the mentioned protocols all but QSIG are not supported with MGCP, QSIG by all means is supported with MGCP.
There are a ton of other E1 protocls, especially ISDN variasions (most common ones) that are supported with MGCP.
When you say your E1 is QSIG, is this PRI to integrated to another PBX? Typically QSIG is used to integrate PBXs and not PSTN connection.