| IP Subnet | |
| Domain | wholesale.netvoipnexphone.ch (DNS load balanced) |
| SIP Signalling IP | 185.185.32.153 | 153 |
| SIP Signalling Port | UDP 5060 |
| Media Server IP (RTP) | 185.185.32.140 and 185.185.32.144 |
| RTP Port-Ranges | UDP 35'000 - 65'000 |
| Voice Codec | G.711 aLaw | G.711 μLaw |
| Fax | G.711aLaw, in Band |
| DTMF | RTP payload RFC 2833 with PT101 |
...