The MaxoTel network uses the following SIP specifications...
| Setting | Value |
|---|
| Protocol | SIP |
| Transport | UDP |
| Port | 5060 |
| SRTP | No |
| RTP Port Range | 10,000-20,000 |
| Codec | ALAW/G711A (Recommended) ULAW/G711U G722 G726 iLBC (Not Recommended) GSM (Not Recommended) G729 (Not Recommended) |
| Faxing (T38) Port Range | 4,000-4,999 |
