[:title VoIP:]
The server details you need are the following:
Service Domain: btsip.bt.com
SIP Registrar Server : btsip.bt.com
SIP Registrar Server Port: 5060
SIP Outbound Proxy: sip.btsip.bt.net
SIP Outbound Proxy Port: 5060
SIP Proxy Server : btsip.bt.com
SIP Proxy Server Port: 5060
Usernamer: The username is a combination of the following:
44 + BBTalk number without the first 0 + @btsip.bt.com
e.g. 445601234567@btsip.bt.com
