Documentation Index
Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
Use this file to discover all available pages before exploring further.
Firewall and ACL configuration for Telnyx SIP signaling, media transport, and webhook delivery.
For current SIP signaling addresses, media IP ranges, supported codecs, and regional FQDNs, see sip.telnyx.com.
Port requirements
| Service | Ports | Protocol |
|---|
| SIP signaling | 5060 | UDP/TCP |
| SIP signaling (TLS) | 5061 | TCP |
| RTP media | 16384-32768 | UDP |
| Webhooks | 443 | TCP |
Webhook IP addresses
Whitelist these CIDR blocks to receive webhook notifications.
North America
| Region | CIDR Block |
|---|
| US-Central (CH1) | 192.76.120.128/29 |
| US-East (DC2) | 192.76.120.136/29 |
| US-West (SV1) | 192.76.120.144/29 |
Europe
| Region | CIDR Block |
|---|
| London (LD6) | 185.246.41.0/29 |
| Frankfurt (FR5) | 185.246.41.8/29 |
| Amsterdam (AM6) | 185.246.41.16/29 |
Asia-Pacific
| Region | CIDR Block |
|---|
| Sydney (SY1) | 103.115.244.0/29 |
| Singapore (SG1) | 103.115.244.8/29 |
