Upgrade your phone lines without upgrading your phone system.

Our Session Initiation Protocol (SIP) trunking service transforms your landline-based private branch exchange (PBX) business phone system into a digital phone network, allowing voice calls to travel via the internet instead of copper lines — without the need to change or upgrade your phone system equipment.

If you’re not yet ready to switch to a full cloud phone system, SIP trunking services make a great transitional technology while ensuring cost-savings, reliability, and scalability.

Upgrade your telephone lines to the latest VoIP technology and support more calls, more phone numbers, with more flexibility — all for a lot less monthly cost.

Superior data performance is backed by industry-leading SLAs from a trusted nationwide telecommunications provider. And failover options are more flexible than traditional telecom circuits — allowing for instant rerouting of traffic, automatically or whenever needed.

Our SIP Trunking service offers the ability for multi-site and mobile workers to become connected seamlessly to the home office PBX phone system. Remote users and satellite offices can be called and transferred calls as easily as ringing a phone on a desk across the room.

We offer the most cost effective solutions on the market — your choice of our unlimited per-trunk* or unbeatable per-minute plans. Some businesses want to predictable billing while others want to variable capacity to eliminate fear of busy signals during call volume spikes.

What is SIP Trunking?

SIP trunking provides the ability for businesses and organizations to take advantage of delivering voice (either circuit switched or IP based) and data over a single converged IP pipe, creating a more economical solution than can be achieved with separate voice and data connections.

Keep Your Existing Phone Numbers

SIP trunking provides the ability for businesses and organizations to take advantage of delivering voice (either circuit switched or IP based) and data over a single converged IP pipe, creating a more economical solution than can be achieved with separate voice and data connections.

Save More Money

Upgrade your existing business telephone service to our SIP Trunks (VoIP lines) and replace your analog Plain Old Telephone Service (POTS), Voice T1, or PRI. Compare to typical business telephone service at $50-$70 per line, our SIP trunking service is just $20 per line — with unlimited long distance!

Keep Your Existing Phone System

 Installation is as easy as connecting our adapter to your analog or digital PBX telephone system, or entering new VoIP credentials in a SIP-compatible phone system, without headaches or costs of replacing any of your existing phones and PBX equipment. Now, that’s smart!

 

Ready to Move Forward?

Buying an office phone system can be complicated, but your Phonewire expert is ready to help, using in-the-field experience and telecom expertise. We'll provide you with helpful advice about products we know you'll love. No project's too big or too small - we do it all!