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A global enterprise-grade SIP network

Reliable voice calling and PSTN connectivity on a backbone we own, not rent, all at reduced cost. Make the switch from Bandwidth, Twilio, Vonage, and legacy carriers.

Talk to an expertView pricing
SIP Trunks Hero

230+countries for international SIP trunking

500M+SIP calls processed monthly

7M+Active phone numbers managed globally

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Carrier grade
WHY PBGS

Carrier, not reseller. Most SIP trunking on the market is resold.

Platforms buy capacity from tier-1 carriers, mark it up, and pass the cost and the finger-pointing to you. Every layer between you and the network takes margin and adds a party to blame when something breaks. PBGS owns the switch. The price, the call quality, and the single point of accountability all trace back to one fact: we are the carrier, not a layer on top of one.

“We’ve ramped from hundreds to hundreds of thousands of calls per day with customers without experiencing any issues from PBGS. It’s been seamless.”

Benjamin Gleitzman

CTO and Co-Founder

FEATURES

Enterprise Voice

Higher answer rates start at the carrier layer. Because we own the network, your calls go out verified, not blocked, and clear on HD voice.

  • HD Voice

    Wideband codecs including AMR-WB for clearer conversations on both the customer and agent legs.

  • Branded Calling

    Your brand shows up on the recipient's screen, so customers know who is calling before they answer.

  • STIR/SHAKEN

    A-level attestation issued by the carrier, so caller identity is verified end to end rather than inherited.

  • CNAM

    Caller name presentation managed at the carrier layer for consistent, trusted display.

  • Spam protection

    Outbound voice profiles protect your traffic against fraud and spam before it leaves the network.

  • Voice Integrity

    Reputation monitoring and remediation to keep your numbers from being flagged as spam.

Security

End-to-end encryption

Built with security at the core, our infrastructure protects customer data with encrypted, monitored, auditable interactions. It meets the highest industry standards so you can confidently protect data and maintain regulatory compliance.

ISO-27001-2013
GDPR
AICPA SOC
PCI
ISO-27001-2013
HOW IT WORKS

Plan your implementation with our team

  • Discuss your calling needs

    Share your destination countries, call volumes and existing PBX setup with our team.

  • Confirm the SIP configuration

    Work with our team to confirm number requirements, connection settings and routing.

  • Validate call quality

    Test inbound and outbound calls together before putting the service into use.

RESOURCES

Start building

Setup SIP connections in minutes.

curl -X POST \
  --header "Content-Type: application/json" \
  --header "Accept: application/json" \
  --header "Authorization: Bearer YOUR_API_KEY" \
  --data '{"connection_name": "Test Connection", "user_name": "MyUser", "password":"my123secure456password789"}' \
  https://api.layaboho.com/v2/credential_connections
  • Icon Resources Coding Tutorial

    SIP trunk setup

    Take a look at how to get started with our SIP Trunking APIs. Configure your connections as needed and start making and receiving calls globally in minutes.

    Explore docs
  • Icon Resources Article

    PBGS ranked in G2's 2025 Best Software Awards

    Recognized for our powerful APIs, private global network, and unmatched customer support.

    Learn why
PRICING

See our SIP trunking pricing

PBGS customers only pay for what they use, and typically save up to 50% over other CPaaS providers. Lower list pricing and automatic volume discounts are built in as you scale.

Starting at:

$0.0032

Per minute
See pricing
PRODUCTS

All your communication needs, on infrastructure built for reliability.

  • Managed telephone service diagram

    Voice API

    Event-driven call control on the switch we operate. WebSocket media streaming for STT, LLM, and TTS. Sub-200ms event delivery from the switch to your AI agent.

    Learn more
  • Woman responds to text message

    SMS API

    Send and receive business messages through the PBGS messaging API.

    Learn more
  • Global phone numbers

    Phone Numbers

    Find local numbers for your business and connect them to voice and messaging.

    Learn more
  • Toll-free text message example

    Toll-Free Numbers

    Give customers a toll-free number to reach your business by voice or SMS.

    Learn more

Discuss your project with our team

Talk to an Expert

FAQ

SIP trunking, put simply, is a means of operating phone systems over the internet, instead of using a traditional phone line. Learn more about how SIP trunking can transform your business communications on our Resource Center.

Resources, Docs, Support

Sip Trunks hub

  • Article icon

    SIP Trunking | PBGS

    Instantly scale voice connections with Elastic SIP Trunking. Experience low-latency, jitter-free calling with no packet loss on our private Tier-1 network.

    Read more
  • Article icon

    SIP Trunking Configuration Guides | PBGS

    PBGS's SIP trunking guide will help you configure your sip devices for use with our service.

    Read more
  • Article icon

    List connections API | PBGS

    Returns a list of your connections irrespective of type.

    Read more
  • Article icon

    Create a credential connection API | PBGS

    Creates a credential connection.

    Read more
  • Article icon

    List available phone numbers API | PBGS

    List available phone numbers

    Read more
  • Article icon

    Retrieve a phone number with voice settings API | PBGS

    Retrieve a phone number with voice settings

    Read more
  • Article icon

    Get all outbound voice profiles API | PBGS

    Get all outbound voice profiles belonging to the user that match the given filters.

    Read more
  • Article icon

    PBGS Blog | CPaas & UCaaS Resources

    Find data-driven research, comprehensive guides and all things SIP trunking, voice and SMS APIs, wireless and more.

    Read more
  • Article icon

    What is SIP Trunking? Session Initiation Protocol Explained

    This SIP Trunking 101 guide will tell you everything there is to know about SIP Trunking, and how to start improving your communications today.

    Read more
  • Article icon

    SIP trunking architecture: What is it, and how does it work?

    Learn how SIP trunking architecture works so your business can experience advanced communications and connectivity.

    Read more
  • Article icon

    Setting up a SIP trunk — A step-by-step guide - PBGS

    Learn how to set up a SIP Trunk in a matter of minutes with PBGS today.

    Read more
  • Article icon

    Everything You Need To Know About Call Origination

    Learn about call origination with PBGS: what it is, how it works, and what to look for in a provider.

    Read more
  • Article icon

    SIP Trunk vs PRI | The Clear Winner for Your Business

    SIP Trunk vs PRI: Get a complete breakdown of the difference between primary rate interface and session initiation protocol and which is best for business.

    Read more
  • Article icon

    SIP vs VoIP — Breaking down the key differences - PBGS

    SIP vs VoIP. While VoIP refers to any internet-based phone service, SIP Trunking refers to a communication protocol that is used for most VoIP.

    Read more
  • Article icon

    PBGS vs. Twilio for Elastic SIP Trunking Comparison

    PBGS and Twilio are both popular providers for Elastic SIP Trunking services, but their products differ in some fundamental ways.

    Read more
  • Article icon

    Understanding Inbound SIP Trunking for Your Business [2021]

    Understanding inbound and outbound SIP trunking for your business. Pay for the features you need while scaling your call capabilities.

    Read more
  • Article icon

    SIP meaning: common terms and definitions

    Ever wondered about the origin or meaning of particular SIP terms, acronyms or buzzwords? We shed some light in this blog post.

    Read more
  • Article icon

    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
  • Article icon

    The best Bandwidth alternative - PBGS

    Looking for a Bandwidth alternative? Compare PBGS vs. Bandwidth on reliability, pricing, and support. See why PBGS is the top choice.

    Read more
  • Article icon

    How to Configure a SIP Trunk | PBGS Help Center

    Step-by-step guide on setting up a SIP Trunk with PBGS using a compatible soft phone or system.

    Read more
  • Article icon

    PBGS SIP Trunking Configurations | PBGS Help Center

    Use PBGS as your voice carrier with the compatible soft phone or pbx of your choice.

    Read more
  • Article icon

    SIP protocols that PBGS uses | PBGS Help Center

    Wondering what SIP transport protocols are used at PBGS? Find out more here.

    Read more
  • Article icon

    SIP Connection | PBGS Help Center

    Guide to SIP connections: AnchorSite® settings, IP authentication, and SIP URI calls.

    Read more
  • Article icon

    SIP Connection: Number Formats | PBGS Help Center

    Here we will talk about SIP connections and ANI/DNIS number format control!

    Read more
  • Article icon

    Inbound/Outbound Voice | PBGS Help Center

    Inbound/Outbound Voice configuration guideline materials. Start building on PBGS today.

    Read more
  • Article icon

    Migrate To PBGS From An Existing SIP-Enabled Platform

    Bring Your Own Carrier To PBGS & save money while improving call quality, reporting, & scalability. Works with Twilio, Plivo, Vodia, Elastix, 3CX & More.

    Read more
  • Article icon

    VoIP for Small Business | Top Rated VoIP Solution

    Find out what makes PBGS the best VoIP provider, and find the perfect plan for your small business.

    Read more