| Firewall Ports | Network Protocol | Application Protocol | Description |
|---|---|---|---|
| 80/443 | TCP | HTTP/ HTTPS | Used for web servers |
| 22 | TCP | SSH | Used for SSH connectivity |
| 3478 | UDP | STUN service | Used for NAT traversal |
| 3479 | UDP | STUN service | Used for NAT traversal |
| 5060 | UDP & TCP | SIP UAS | Used for SIP signaling |
| 5061 | TCP | SIP UAS | Used for SIP signaling (For TLS) |
| 16384-32768 | UDP | RTP/ RTCP multimedia streaming | Used for audio data in SIP and other protocols |