customer getting callmgr 5.1 has existing t-1's.can the carrier be providing customer with a t-1 that has numbers associated with each channel? that is, as an example, if 555-1212 is incoming number dialed, it comes in on channel 1; if 555-5678 is called, it comes in on ch 2, etc.
if possible, can i use mgcp t-1cas to handle this or do i need h323?
also, what signaling specs do i need to verify with carrier? is e&m only port type?