# Acefone SIP

Route Acefone SIP trunks into Bolna voice agents for flexible call handling. Keep your existing Acefone telephony while adding AI-powered conversations.

## How Acefone 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

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.

**Voice Stack**  
Telephony → Phone Network → STT Listener → LLM Reasoning → TTS Voice → Tools Actions

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

# Overview

Acefone provides cloud telephony and SIP trunking services. With Bolna's Acefone SIP integration, you can connect Acefone SIP trunks to power your AI voice agents with their carrier infrastructure.

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

## Features & Use Cases

**SIP Trunking**  
Standard SIP protocol support for flexible call routing.

**Use Case: Cloud PBX Integration**  
Connect Bolna agents to Acefone cloud PBX 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.
- [Telephony **Plivo**](/content/integrations/plivo/index.html)  
Use Plivo telephony with Bolna voice agents for affordable inbound and outbound calling in India.
- [Telephony **Twilio**](/content/integrations/twilio/index.html)  
Connect Twilio to Bolna for global phone coverage.

## Keep exploring the voice stack

- [Browse **Telephony**](/content/integrations/telephony/index.html)  
Telephony providers connect your voice agents to the phone network so they can make and receive real calls.
- [Browse **Large Language Models**](/content/integrations/llm/index.html)  
The LLM is the brain of your voice agent.
- [Browse **Speech-to-Text**](/content/integrations/stt/index.html)  
Speech-to-text converts what callers say into text that your LLM can process.
- [Browse **Text-to-Speech**](/content/integrations/tts/index.html)  
Text-to-speech turns your agent responses into spoken audio.
- [Browse **Tools & Workflows**](/content/integrations/tools/index.html)  
Tools let your voice agents take action during a call.

## See where Acefone 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://www.acefone.com/sip-trunking)