Network requirements
To use SIP Trunking, allow both signaling and media IPs in your firewall. Signaling and media use different IP addresses and different ports.
SIP signaling
Section titled “SIP signaling”Teler uses 3.7.75.192 (IN) for SIP origination and termination.
| Protocol | Port | Notes |
|---|---|---|
| UDP | 5060 | Only supports credential-based authentication; requires the origination IP to be shared with the Teler team in advance for whitelisting. |
| TCP | 5060 | Standard SIP. |
| TLS | 5061 | Recommended. Required with Transport TLS/SRTP. |
Media (RTP)
Section titled “Media (RTP)”Real-time media uses 13.202.4.3 (IN).
| Protocol | Port range | Notes |
|---|---|---|
| RTP | 16384–32768 | Standard media transport. |
| SDES-SRTP | 16384–32768 | Recommended. Required with TLS/SRTP. |
Next steps
Section titled “Next steps” SIP Trunking Create and configure a trunk in the dashboard.