Hi is_mail123,There are a couple of things that needs to be checked.But we need to understand why is the Service Provider not accepting the call.Best way to find out is to check with the service provider.. why they are not accepting the call.Else jus...
Hi Patrick,There are many things that has to be taken in to consideration while answering this question.If the call is made from an IP Phone A to IP Phone B. The call should ideally stay up. In case CUCM is also used as DHCP server for the IP Phone...