1&1 SIP-Server = sip.1und1.de
1&1 SIP Register Port: 5060
1&1 SIP Terminal Use Outbound Proxy: Yes
1&1 SIP Terminal Use Register: Yes
1&1 SIP Proxy Domain Name: sip.1und1.de
1&1 SIP Proxy IP Address: 212.227.15.197
1&1 SIP Proxy Port: 5060
1&1 SIP Register Domain Name: sip.1und1.de
1&1 SIP Register IP Addresst: 212.227.15.197
1&1 SIP Register Port: 5060
1&1 SIP Authentication String: 49<vorwahl><rufnummer>
1&1 SIP Terminal User Name: 49<vorwahl><rufnummer>
1&1 SIP Terminal Password: <passwort>
1&1 SIP Terminal Port: 5060
1&1 SIP Terminal Use Null Packet: No
1&1 SIP Terminal Use
DNS: Both Register And SIP Proxy Servers Use
DNS