Build Voice Experiences with AI-ready

Voice API

Deploy seamless communication experiences with developer-friendly APIs, transparent pricing, and scalable infrastructure built for global voice applications.

Talk to an expert

140+countries supported

25M+API requests daily

10M+call minutes per day

WHY PBGS

Why leading companies choose PBGS Voice API

Global reach
Full programmatic control over PSTN voice services in 130+ countries. As a licensed carrier, we deliver secure, compliant, and reliable infrastructure. So you can scale your voice application confidently.
Ultra-low latency
Voice traffic stays on a private backbone with AI and telephony infrastructure co-located for faster response times. With PoPs in 18 regions, round trip time stays under 200 ms so your IVRs and AI voice agents feel instant for every caller.
Cost-effective pricing
Most CPaaS providers buy carrier capacity, add a markup. With PBGS Voice API, you get usage-based pricing with no hidden fees, no third-party markups, and no upfront investment in infrastructure. Up to 50%+ cost savings when switching from other providers.

FEATURES

Powerful Voice API features

PBGS Voice API gives developers everything they need to build scalable, reliable and programmable voice infrastructure, including AI powered call flows.

Real-time media streaming
Stream bi-directional RTP audio over secure WebSockets. Ideal for voice-AI assistants and real-time coaching platforms that analyse speech on the fly and deliver instant, context-aware feedback.
Speech-to-text
Convert voice to text in real-time with low-latency, high accuracy engines from PBGS, Deepgram, Whisper, Turbo Grok STT or AssemblyAI
Text-to-speech
Play dynamic, natural-sounding voices in 100+ languages and accents using synthesized speech.
Conversational AI commands
Add voice agents to any call in minutes by chaining TTS, STT, and LLM logic via simple AI Gather and AI Assistant commands.
Call control
Take full control of every leg of a call with one-line API commands. Route callers, move them between endpoints, or cleanly end sessions in real time.
Browser/App Calling
Easily integrate calling into your web and mobile applications with the power of WebRTC. Our Voice SDKs are available for web, iOS, and Android.

“PBGS has been an excellent partner in our new integration. They've helped us unlock new regions that we were unable to service in the past and added resiliency to our platform”

Dave Bullock

CTO of UJET

VOICE API FOR DEVELOPERS

Build smarter voice applications with flexible APIs

With PBGS’s REST APIs, you can effortlessly create dynamic call flows and integrate AI into the mix without telephony expertise.Your team can go from prototype to production easily with detailed developer documents and 24/7 free support. Go to market fast, scale rapidly, and keep your focus entirely on innovation.

Explore Dev Docs

Dial

curl -X POST https://api.layaboho.com/v2/calls \
  -H "Authorization: Bearer $PBGS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "connection_id": "1234567890",
    "to": "+13125550123",
    "from": "+13125550456"
  }'

Record

curl -X POST https://api.layaboho.com/v2/calls/{call_control_id}/actions/record_start \
  -H "Authorization: Bearer $PBGS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "format": "mp3",
    "channels": "single"
  }'

Suppression start

curl -X POST https://api.layaboho.com/v2/calls/{call_control_id}/actions/suppression_start \
  -H "Authorization: Bearer $PBGS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'

Gather using AI

curl -X POST https://api.layaboho.com/v2/calls/{call_control_id}/actions/gather_using_ai \
  -H "Authorization: Bearer $PBGS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "parameters": {
      "type": "object",
      "properties": {
        "age": { "type": "integer" }
      },
      "required": ["age"]
    },
    "greeting": "Hi! How old are you?"
  }'

Build faster with AI

PBGS Agent Skills provides pre-built tools for AI coding agent like Claude Code, Cursor, and Windsurf to integrate with the PBGS API in minutes. Available in Python, JavaScript, Go, Java, and Ruby. Let your AI coding assistant write PBGS integrations. Build in minutes.

Learn more

PRICING

See our Voice API pricing

Customers can save up to 50% by switching to PBGS with lower per-minute rates, automatic volume discounts, and no hidden fees.

Starting at

$0.002

per minute

See pricing

PRODUCTS

Build with Voice API

Discuss your project with our team

Talk to an expert

FAQ

A Voice API is a tool that developers use to make and receive phone calls using an Application Programming Interface (API). A Voice API connects internet-based applications to the Public Switched Telephone Network (PSTN).

Resources, Docs, Support

Voice API hub

PBGS Voice Product Suites Overview | PBGS
PBGS Voice Product Suites Overview
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Fundamentals | PBGS
Overview
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Voice API Commands and Resources | PBGS
The following endpoints can be used with the Voice API applications.
Read more
Webhooks | PBGS
Overview
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Voice APIs | PBGS
Our Voice products make it possible for you to programmatically manage calls, manage outbound voice traffic, and send/receive faxes.
Read more
List call control applications API | PBGS
Return a list of call control applications.
Read more
Retrieve a phone number with voice settings API | PBGS
Retrieve a phone number with voice settings
Read more
List connections API | PBGS
Returns a list of your connections irrespective of type.
Read more
Dial API | PBGS
Dial a number or SIP URI from a given connection. A successful response will include a call_leg_id which can be used to correlate the command with subsequent webhooks.
Read more
What is Voice API? Programmable Voice Explained
What is a voice API? Our comprehensive guide to programmable voice for developers breaks down cost, use cases, and incredible voice API features.
Read more
Call Control : PBGS Launches New Programmable Voice API
The PBGS voice API allows customers to connect and control calls programmatically, all over the globe.
Read more
PBGS Voice API vs. TeXML: What’s the difference?
You can use either PBGS Voice API or TeXML to build advanced voice capabilities into your applications. Learn which tool is right for your project.
Read more
Customer spotlight: Using PBGS Voice API with OpenAI
A developer in Turkey leveraged PBGS and OpenAI to call thousands of pharmacies to find medication during a shortage.
Read more
ChatGPT Voice API vs. PBGS: Best voice API for business
Compare ChatGPT Voice API and PBGS Voice API to find the best option for business communications. Explore features, pricing, and real-time AI capabilities.
Read more
PBGS vs Twilio: Voice API comparison for 2025
PBGS vs Twilio: See which voice API gives you lower latency, better pricing, and full-stack control for global communications.
Read more
Foundational tools for building future-ready voice solutions
Learn what your organization needs to build innovative voice solutions that will meet the demands of modern businesses and consumers.
Read more
[Video walkthrough] Getting started with PBGS Voice API
Join VP of Business Development Mclain Roth as he walks through the setup steps to get started using PBGS Voice API (Call Control).
Read more
How AI-powered voice tools elevate customer conversations
Learn how voice AI is changing customer communication, improving efficiency, and reducing costs.
Read more
Voice AI Agents—Quickly build and launch | Ultra-low latency
Build and launch powerful Voice AI Agents faster and cheaper with PBGS. Ultra-low latency, unmatched call quality, total control.
Read more
The Better Twilio Alternative - PBGS
Switch to PBGS for a better Twilio alternative. Benefit from our competitive pricing, private global network, and award-winning support.
Read more
The better Vonage Voice API alternative - PBGS
Switch to PBGS for a better Vonage voice alternative. Benefit from our global coverage, excellent support, and flexible APIs..
Read more
General Voice API Help | PBGS Help Center
Get assistance with PBGS's Voice API: UK TPS, Google Verified Calls, STIR/SHAKEN.
Read more
TeXML and PBGS Voice API compatibility | PBGS Help Center
Avoid combining TeXML and Call Control commands in the same application
Read more
PBGS Tech Specs | PBGS Help Center
Here you will find out key tech specs at PBGS and what they mean for our service.
Read more
API Keys and How to Use Them | PBGS Help Center
In this article we will explain API keys and how to use them with both API v2 and API v1.
Read more
Streamline Call Control workflows with PBGS Flow
Create highly customizable Call Control workflows with PBGS Flow. Automate call handling for efficient, reliable voice communication.
Read more
Create Custom Call Flows with PBGS
Build custom call flows that connect you to the right customers at the right time with PBGS Voice API. Start building call flows today.
Read more

Voice API

140+countries supported

25M+API requests daily

10M+call minutes per day

Global reach

Ultra-low latency

Cost-effective pricing

Powerful Voice API features

Build smarter voice applications with flexible APIs

See our Voice API pricing

Build with Voice API

SIP Trunking

SMS API

Phone Numbers

Fax API

Discuss your project with our team

FAQ

What is a Voice API?

How do I build with the PBGS Voice API?

Can I record calls with a Voice API?

Does PBGS offer text-to-speech capabilities?

How much does the PBGS Voice API cost?

Can I use XML code with the PBGS Voice API?

What use cases does the PBGS Voice API support?

How can I use AI with PBGS Voice API?

PBGS Voice Product Suites Overview | PBGS

Fundamentals | PBGS

Voice API Commands and Resources | PBGS

Webhooks | PBGS

Voice APIs | PBGS

List call control applications API | PBGS

Retrieve a phone number with voice settings API | PBGS

List connections API | PBGS

Dial API | PBGS

What is Voice API? Programmable Voice Explained

Call Control : PBGS Launches New Programmable Voice API

PBGS Voice API vs. TeXML: What’s the difference?

Customer spotlight: Using PBGS Voice API with OpenAI

ChatGPT Voice API vs. PBGS: Best voice API for business

PBGS vs Twilio: Voice API comparison for 2025

Foundational tools for building future-ready voice solutions

[Video walkthrough] Getting started with PBGS Voice API

How AI-powered voice tools elevate customer conversations

Voice AI Agents—Quickly build and launch | Ultra-low latency

The Better Twilio Alternative - PBGS

The better Vonage Voice API alternative - PBGS

General Voice API Help | PBGS Help Center

TeXML and PBGS Voice API compatibility | PBGS Help Center

PBGS Tech Specs | PBGS Help Center

API Keys and How to Use Them | PBGS Help Center

Streamline Call Control workflows with PBGS Flow

Create Custom Call Flows with PBGS