[cisco-voip] Modem questions

[Lemon]

Hi,

We have 6 PRI's from PSTN spread over 2x As5300, using H323 connecting
to CallManager 6.0. We then have 2x Qsig connections to a Ericson
MD110 PBX which are MGCP controller from CallManager.

Normal calls inbound and outbound are working fine, analog faxes
hanging off the PBX can send and receive. Problem is that we have a
few analog modems hanging off the PBX and somehow we can not establish
connections to them. We can hear the negotiating taking place but no
connection gets established.

Anyone seen this before or have some ideas?

Thnx