i currently have a project at hand which is a voip project using sip protocol. my client wants to send voip traffic to my router using STM interface with SIP protocol. But the challenge is how do i convert the sip protocol to ISDN PRI on another STM gigabit interface before sending it to my PSTN switch for onward termination to the customer. currently i use serial interface to communicate with my PSTN using E1 for other existing clients in other to terminate calls to customers. please see sample configuration below:
Yes i mean STM as Synchronous Transport Module for Optical Network. currently, the medium of transport for communication between my router and the PSTN switch is the serial interface whose configuration i have shown above. also currently E1 pri cables are connected to this serial interface and E1s are provision for this serial interfaces directly from the switch for communication with the PSTN switch.
the question now is that my switching team now wants be to communicate with their switch using fibre from STM interface on my router without using PRI cables. is this achievable? if yes what is the configuration like?
