Thanks, it was all down to port forwarding in the firewall. Generally when a program installs on a Windows PC it configures the necessary port forwarding, as Vodia PBX does not do this it would have been nice to have had a list of the required ports and protocols. It would also be nice to have a list of port forwarding requirements for the router firewall to enable access to the SIP provider. As when playing around to get the device to work I'm not certain if I have opened too much.
Apart from that it works OK now and will do as a stop gap until we can get a Vodia Mini PBX
Are there any suppliers/distributors in the UK/Europe or do we have to purchase from the States?