Thanks for the link Joseph, but unfortunately TT refuse to provide that information.

@woozle Support understands that the router connects to the internet, but you're right, it seems VoIP will only work with their equipment. Or, they're just not willing to give out their telephony...

Hi, easy to set up and connect to the internet, but impossible (for me) to connect to TalkTalk digital voice. In Telephony settings after entering my phone number, a second required parameter is...