I have ISDN PRI E1 connection and i am able to recieve all international calls except two DID number. But I am able to receive national calls
without having any problem. Also noticed that We are able to recieve international calls from certain countries in these DID number.
Also noticed that call is hitting in the gateway and getting debug isdn q931 output with proper digit and Isdn Type:International.
For testing we replaced the phone with another,but issue has same.
Let me know either is there any problem with PBX system or problem with Service Provider.
Thanks in advance for your help!!!!