Twilio SIP Trunking
Attach Twilio Elastic SIP Trunks to Bolna voice agents for flexible call routing and worldwide PSTN access. Scalable SIP telephony with global coverage.
How Twilio SIP Trunking fits in the stack
Best for
Making and receiving real phone calls at production scale.
Use this layer when
You need numbers, trunking, call routing, or carrier control.
Connects to
STT, LLM, TTS, and workflow actions inside the live call.
Overview
Twilio Elastic SIP Trunking provides enterprise-grade SIP connectivity with global PSTN access. With Bolna's Twilio SIP integration, you can leverage Twilio's worldwide carrier network while maintaining flexibility with SIP-based call routing.
For generic SIP concepts and configuration basics, see our Generic SIP Trunk Guide.
Features & Use Cases
Global PSTN Access
Make and receive calls in 100+ countries through Twilio's carrier network.
Elastic Scaling
Automatically scale capacity up or down based on call volume, no need to pre-purchase channels.
IP Access Control
Secure your trunk with IP whitelisting and credential-based authentication.
Twilio Ecosystem Integration
Leverage other Twilio services (TaskRouter, Studio, Functions) alongside SIP trunking.
Use Case: Hybrid Cloud Communications
Integrate Bolna AI agents with existing Twilio infrastructure for unified communications.
Use Case: Global Call Routing
Route calls through optimal carriers based on destination for cost and quality optimisation.
Other providers in this layer
Telephony Exotel
Connect Exotel to Bolna voice agents for reliable inbound and outbound calling across India. Trusted by enterprises handling high-volume phone operations.
Telephony Plivo
Use Plivo telephony with Bolna voice agents for affordable inbound and outbound calling in India. Solid infrastructure with competitive per-minute rates.
Telephony Twilio
Connect Twilio to Bolna for global phone coverage. Spin up local numbers in 100+ countries and route inbound or outbound calls to your AI voice agents.
See where Twilio SIP Trunking fits in your production workflow
Use the demo to walk through provider selection, stack tradeoffs, and the exact workflow you want Bolna to automate.