Tahir

Hi Folks, I have Axon PBX running without any problems within our network, and any external calls made via our registered SIP lines, up to 4 also go straight through to the PBX, and if they are not answered are taken over by IVM Answering attendant. Looks like a fantastic setup, however, it appears as though anyone outside of the network wanting to use our PBX with a product like Express Talk fails to register with an error 404, it seems as though it is unable to communicate with the PBX yet the following ports are all open: UDP: 5060 - 5090 UDP: 8000 - 8090 And from the client machine a reverse lookup maps to the external IP address for the Axon PBX so communication should not be a problem. Am i missing a port range which should be open to allow the PBX to register clients using Express Talk VOIP software? Thanks for the support, Tahir