Im looking to start moving a compnay from thier legacy PBX over to a call manager express setup, the issue is the PBX has been in for some time and nobody seems to know how to , or even have access to view or change any config.
All calls come in on a single ISDN 30 with 10 channels utilised ( im led to believe)
What we currently have is ISDN E1 > Lucent PBX
What I am aiming for is ISDN E1 > 38xx router > Lucent PBX
Day 1 all calls to flow through the router from ISDN into the PBX untouched
Then adding phones into the CME environment to be able to dial into the legacy PBX
This looks simple and i would have thought very common way but i have found very little on how to
can anyone point me in the right direction ?