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Incoming call from Telco that is forwarded to PSTN number is failing
The call flow is: Telco--(SIP)--CUBE--(SIP)--CUCM--Phone
Call forwarding to PSTN line is not working when the call is originated from PSTN.
Following are the challenges for incoming calls from Telco
When a call come into the CUBE from Telco to CUCM, you want dialed number and calling number
to be transformed before send to CUCM. a) From International caller: dialed number looks like 00966-3-813-xxxx, but Telco will send 3813xxxx and this must become xxxx before CUBE route the call to CUCM b) From country caller (different city): dialed number looks like 03813xxxx, but Telco will send 3813xxxx and this must become xxxx before CUBE route the call to CUCM. c) From country caller (same city): dialed number looks like 813xxxx. Telco will send 813xxxx and this must become xxxx before CUBE route the call to CUCM. d) For calling number, you may add prefix 900 (to international number) and prefix 90 (to national number) for redial purpose.
To achieve these challenges a sample configuration on CUBE is given below.
1) Translation rule to transform called number sent by Telco (3813xxxx and 813xxxx) to xxxx as below