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Firewall and ACL configuration for Telnyx SIP signaling, media transport, webhook delivery, and AI services.

SIP signaling and media

For current SIP signaling addresses, media IP ranges, supported codecs, and regional FQDNs, see sip.telnyx.com.

Port requirements

Webhook IP addresses

Whitelist these CIDR blocks to receive webhook notifications.

North America

Europe

Asia-Pacific

These ranges also apply to WebSocket stream connections.

AI Services IP addresses

Whitelist these CIDR blocks if you use Telnyx AI-powered voice services (AI Assistants, TeXML, Conversation Relay, or Call Control API). These are the source IPs from which Telnyx AI services emit webhook tool calls and HTTP callbacks. SIP signaling for AI workloads uses the same edge IPs as the rest of the platform (see sip.telnyx.com).