I've implemented a sip connection to VoIP Provider using an IP2IP Gateway connected to CCM using H323.
I've 2 problems:
1) Provider give me 5 accounts, 1 for each pstn number assigned but I'm able to register only the account that I specified with sip-ua authentication username (I can configure only 1 authentication for router)
2) Into the account registered I'm able to place and receive call correctly but I'm not able to use Dtmf digit on a call
Can anyone help me ?