SIP trunk to ISP with CUBE (H323 to SIP)Inbound/outbound call is fine. Inbound DTMF works. Outbound DTMF work intermittently with random digit drop. (happens to approx 1 out of 3 calls) "debug voip rtp session named-event" shows router sending the co...

I have customer who is on CM 3.3 and IPCC 3.1. I plan to upgrade them to CM4.2 and IPCC 4.0. Is there a better choise out there?

I need to choose between upgrade from 3.1.1 to 4.0.5 or install a new server with 4.0.5 and migrate the script over. I heard there is problem trying to upgrade from 3.x to 4.x and the script will not work. Try to find out which approach is better and...