SIP for Elastix

Enhanced Unified Communications with SIP for Elastix®

SIP.US has developed our trunking service to be compatible with a variety of free, open source, call control and unified communications solutions including Elastix.  Customers who choose SIP for Elastix enjoy reduced communications costs, advanced features and increased flexibility.

Supported Products

About Elastix

Elastix is a free open source platform for unified communications.  The solution not only provides traditional PBX features and call control, it integrates additional communication media such as, fax, messaging, video and mail services.  Full versions of Elastix are available without cost or limitation.  Elastix was created and is maintained by PaloSanto Solutions.

business woman office talking conference call through microphone scaled

Implementing Elastix

Elastix has been designed to be deployed primarily by systems integrators, developers or people very familiar with software deployment and telephony.  For those without these resources, professional services and support are available.  Elastix also offers appliances which are pre-configured with the Elastix software.

Why Choose SIP.US for Elastix?

Every business phone system needs software to manage call control and additional telephony features like voicemail, automated attendants, call queues and so forth. This functionality and more is provided by Elastix. The phone system also needs a way to deliver calls to the network that routes them to their final destination. This network is known as the Public Switched Telephone Network (PSTN.) Calls can be delivered to the PSTN via traditional carrier telephone lines, or over the data network. SIP is an option that connects to the PSTN by using a data network and by passing the legacy carrier lines. Customers choose to deploy SIP for Elastix using SIP.US for a number of reasons:


  • The SIP + Elastix approach is usually significantly cheaper than carrier PRI lines
  • SIP.US offers customers the option to subscribe to just one channel at a time. Traditional telephone lines are sold in groups of 23 channels, meaning the customers often pay for more than they need
  • Customers who want the flexibility to choose their own broadband Internet connection choose SIP.US because we do not require clients to purchase bandwidth from us
  • Our on-demand online administration tools make it easy to manage your SIP trunk and purchase additional channels as needed
  • Voice quality and reliablity are important to our customers. Therefore we use only Tier-1 upstream providers
  • SIP.US has been designed to support many open source call control solutions, including Elastix


How To Configure SIP for Elastix

Complete detailed instructions for setting up Elastix for SIP.US are available at  In addition, we are very happy to help with your configuration if you will give us access to your system.  If you'd like this help, visit our support site and open a new ticket.

Start your free trial today and join our other clients who have cut costs, increased flexibility and improved employee productivity with SIP for Elastix.

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SIP for Elastix Frequently Asked Questions

Unlike other providers that require you to purchase Internet connectivity from them, SIP.US supports the broadband Internet connection of your choice.  T1-data, cable, DSL or Metro Ethernet will all suffice.

Customer Feedback

Here is what our customers have to say about working with SIP.US.

Simple Interface.

We were able to get our systems up and running with SIP.US in a matter of minutes using the simple online interface.

Matt Harrison

Elevate Audio Visual

Low cost and good!

It’s easy to be low cost, but it’s a lot harder to be low cost AND good! In my opinion, SIP.US should be on anyone’s short list of primary providers.

Michael Dodds


All the tools I need.

The SIP.US Control Panel gives me all the tools I need to add, change and delete phone numbers. I can even order all the DIDs I need and set them up instantly. I love having access to these self-service tools, but I know the support team is also there if I need additional help.

Colin Cook

Thimble River

Up and running in minutes.

We are able to get our Switchvox systems up and running with SIP.US in a matter of minutes using the simple online interface.

Mike Crockett

BITS Technology

Quality support, low price.

I wasn’t sure how to configure my Asterisk system to work with SIP.US. The SIP team was able to remotely access my system and set it up for me. I didn’t expect that level of support for such a low price.

Greg Galvin

The Galvin Law Group

Fast and easy set-up.

I don’t have any experience with SIP trunking, but connecting my Asterisk PBX to SIP.US was fast and easy.

Eddy Pareja

Sangfroid Web Design

Excellent support.

The reason we moved most of our VOIP to you is because of your excellent support. We moved from another provider but your support makes the extra money well worth it.

Brian Marshman

CEO BMI SmartCloud