# Exotel SIP

Route Exotel calls over SIP into Bolna voice agents for smart IVR replacement and AI-powered call flows. A smooth upgrade from traditional phone systems.

[Book a Demo](/content/meet/index.html) [Official Docs](https://developer.exotel.com/sip)

## How Exotel SIP 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.

## Telephony is the calling layer

### Telephony is the calling layer

This provider connects Bolna to the phone network. It controls how calls start, where they route, which numbers you use, and how the audio enters your agent pipeline.

**Telephony** **→**

**Phone Network**

**→**

**STT** **Listener**

**→**

**LLM** **Reasoning**

**→**

**TTS** **Voice**

**→**

**Tools** **Actions**

This page focuses on where Exotel SIP fits in a production voice stack. For full setup steps, credentials, and API details, use the documentation link above.

# Overview

Exotel SIP integration allows you to route calls from Exotel's enterprise telephony platform to Bolna AI agents using SIP protocol. This enables replacing traditional IVR with conversational AI while leveraging Exotel's carrier relationships and compliance infrastructure.

For generic SIP concepts, see our [Generic SIP Trunk Guide](/content/integrations/sip-generic/index.html).

## Features & Use Cases

**Enterprise Compliance**

Leverage Exotel's DLT compliance and regulatory infrastructure.

**Carrier-Grade Quality**

Benefit from Exotel's direct carrier relationships for superior call quality.

**Use Case: IVR Modernization**

Replace legacy IVR systems with AI agents while maintaining Exotel infrastructure.

## Other providers in this layer

[Telephony **Exotel**](/content/integrations/exotel/index.html)  
Connect Exotel to Bolna voice agents for reliable inbound and outbound calling across India. Trusted by enterprises handling high-volume phone operations.

[Telephony **Plivo**](/content/integrations/plivo/index.html)  
Use Plivo telephony with Bolna voice agents for affordable inbound and outbound calling in India. Solid infrastructure with competitive per-minute rates.

[Telephony **Twilio**](/content/integrations/twilio/index.html)  
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 Exotel SIP fits in your production workflow

Use the demo to walk through provider selection, stack tradeoffs, and the exact workflow you want Bolna to automate.

[Book a Demo](/content/meet/index.html) [Read Official Docs](https://developer.exotel.com/sip)