SIP Trunks

SIP Trunks

The use of SIP trunks has been growing exponentially over the past few years as businesses have begun to appreciate the flexibility, savings and capabilities of this service.

CCSi Communications now offers SIP Trunks, local numbers (DIDs), Toll Free numbers to businesses looking to save on their telecom expenses.


Our services include same day activation with redirects as your numbers get ported so you can get the immediate benefits. Porting numbers typically takes less than two weeks.

Our SIP Trunks are offered on a month to month basis or with a term contract - you choose what works best for your business.

Think of a SIP trunk as a single voice call routed over your Internet connection. So to determine the number of "lines" needed you need only think of the number of anticipated simultaneous calls that will occur in your business. No need to worry if your 'guesstimate' was incorrect - if you need more, or less, call capacity you simply add or reduce SIP trunks.

Unlike typical PRI services that are offered in packs of 23 voice channels, SIP trunks or voice channels can be ordered individually to meet your business needs, not theirs.

If you currently have a VoIP phone system, or are looking to move to a VoIP system (on premise or hosted), real savings on your total telecom costs can be realized by moving to SIP.

Even if you don't have a VoIP system, CCSi can install an IP gateway that allows you to benefit from the cost savings of SIP today and migrate your digital system to VoIP when you're ready.


Give us a call 630-241-0600 or use the contact form to the right. We'll show you how you can save on your telecom expenses.


With broadband speeds increasing every year and the cost per Mbps dropping, the move to SIP has become more compelling.

  • Eliminate your TDM voice bill-even if you don't have a VoIP capable PBx.
  • Get free local toll and long distance calls in the USA and Canada.
  • Reduce costs with one voice and data network.
  • Scale incrementally.
  • Add/remove DIDs based on your business needs.
  • Redirect calls to another location in case of a disaster.
  • Additional overage 'lines' can be provided at no charge.
  • SIP trunks can be provisioned individually or as a trunk group.