gateway not working

  1. Grandstream gateway GXW4108 is not working with 3cx server verison 15 or above

    Gateway is registered with 3cx server. We can route incoming calls to any extension however we cannot make any outgoing calls. Our outbound rule is ok 3cx server is not blocking the gateway with exisiting gateway configurations there is no problem with 3cx verison 14. This problem only occurs in...