IP Trunking

Run all your VoIP services over a SIP-based trunk to help control costs and boost efficiency.

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  • Upgrade with ease

    Business VoIP service delivers all the features of your current IP PBX system. So there's no need to retrain employees.

  • Grow more flexible

    Government agencies can gradually replace TDM voice circuits and get the most from their converged wide area network.

  • Boost efficiency

    Verizon Business's IP backbone will route calls to and from the Public Switched Telephone Network (PSTN) via your SIP trunk(s).

  • Get value from Verizon

    Our fast, highly reliable network lets you handle calls quickly and consistently.

Have more than 500 employees?

Already a customer?

Get a high-capacity SIP connection that links your IP PBX to our network backbone.

Best for:

  • Controlling costs and boosting efficiency
  • Placing and receiving a large number of VoIP calls at once
  • Transitioning with no training or high costs

IP Trunking gives you the features you need to keep your employees connected.


IP Trunking can connect to Ethernet LANs and legacy telephone equipment, including PBXs, Key Systems, POTS phones, facsimile machines and modems.

Leading service level agreements

Verizon provides leading SLAs that include mean opinion score (Contiguous U.S.), jitter, packet delivery, and network availability.

Communication on- and off-net

Interoperability with the PSTN means you can make and receive telephone calls between different on-net locations, and between on-net and off-net locations.

Service options

Verizon IP Trunking gives you two different access types, at a wide range of speeds.

Internet Dedicated Access

Choose from dedicated access at the following speeds: T1, T3, shadow (redundant) T1 and shadow (redundant) T3.

Private IP

Connect using Private IP at 384 Kbps, 512 Kbps, 768 Kbps, T1, MLPP/NxT1 and T3.

  • Save time. Control costs. Get a better network.

  • Let our Managed Network Services teams help you fine-tune and secure your network.

    Learn more

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Whether you're looking to put this product to work for your business, or you just want more information, we can help you get the answers you need.

  • Work with our experts.

    Tell us a little bit about your business and get set up to meet with our professionals to ask questions, get advice or request a quote.

    Request a quote
  • Find what's right for you.

    Not sure if this is the product your business needs? We can make some recommendations.

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  • Talk to us.

    Call us to check if this product is available in your area and get pricing.

    Call: 1.800.274.8002

*Services and/or features are not available in all countries/locations, and may be procured from in-country providers in select countries. We continue to expand our service availability around the world. Please contact us for availability.