One of my customer's has a site where an existing PBX with DPNSS connection to another company's PBX needs to be integrated into their CUCM6.1 platform.
I'm at a loss where to start here.
Do I look at replacing my customer's PBX with a DPNSS to QSIG converter and then backhauling QSIG through MGCP via router registered to CCM?
Or do I look at integrating a router with E1 to my customer's Nortel Meridian Option 11 and then passing calls through that to the other company?
The whole point of this solution is to maintain 4 digit bi-directional calls between my customer and this other company!
If anyone could advise on how to tackle this issue it would be appreciated.