The network side support on the H323 gateway
is transparent to the CCM. They are two seperate call legs.
1. pots for E1 PRI and
2. voip call leg to CCM.
The support for network side PRI is on 2600/3600/3700/7700/AS5300,AS5800
and its been available since 12.1(3)T and please use
a more recent image 12.2T train ip plus at the least.