RELIABLE
AND
QUALITY CALLS

Unify your voice network with Frontier’s SIP Trunking, a cost-effective way to widen and streamline your communication infrastructure.
Get SIP
Frontier® service
available in select areas.

Next-level voice networking


Get more flexibility and reliability while you extend the life of your existing phone system with SIP Trunking from Frontier.

Whether you use traditional PBX or an IP PBX, upgrading to SIP on Frontier’s fiber network provides a dedicated, private solution, delivering:

Reliability

Enjoy stable, high-quality call connections with the ability to redirect calls to different offices or numbers during outages.

Call security

Frontier’s private network provides call security and quality.

Cost savings

Lower your cost per call, scale up or down easily and only pay for what you need.

Scalability

By adding SIP to your existing PBX, you can add call paths more easily than traditional PRIs.

Built on Business Fiber Internet

Our 100% fiber-optic network, with dedicated internet blazing-fast speeds of up to 100 Gbps1, provides the clear, crisp and reliable calls required for modern communications – and is future ready, so your business can handle increasing call volumes for years to come.

Ethernet Virtual Private Line (EVPL)

Frontier SIP is delivered on a fiber Ethernet Virtual Private Line, providing reliability and call quality.

Over-the-Top (OTT)

For customers outside our Fiber footprint, SIP Trunking can be provisioned via Frontier Internet services, such as Dedicated Internet Access (DIA) or Managed Network Services (MNS), as well as on another provider’s Internet.

1Limited service availability.

Why choose Frontier SIP Trunking?

All SIPs are not the same. With Frontier SIP, you’ll get benefits including:

Frontier’s Ethernet Virtual Private Network delivers reliability and call quality backed by a Service Level Agreement of 99.99% guaranteed circuit availability.

Contact us and unify your voice network with Frontier’s SIP

By clicking "submit”, you consent for Frontier and partners to use automated technology, including pre-recorded messages, cell phones and texts, to contact you at the number or email address provided. This includes if the number is currently on any Do Not Call Lists. This consent is not required to make a purchase.