SIP for Grandstream PBX

Easy-to-Manage, Enterprise Grade Voice Solution

For decades, only the largest companies could afford the features and functionality provided by expensive, difficult to use and high maintenance PBX systems.  Today, technology has evolved to make it possible for smaller businesses to gain the competitive advantages of a sophisticated business communications solution without the huge expense.  SIP.US along with the Grandstream PBX is an excellent choice for companies that want the results without the hassle.


About Grandstream PBX

The Grandstream UCM6100 is a series of IP PBX appliances designed to provide reliable, affordable voice, video, data and mobility features to small and medium sized businesses.  The solution is easy-to-manage with quick set up and deployment using a web-based interface and Zero-Configuration provisioning.  The system unifies multiple communications technologies including, voice, video collaboration, video surveillance,  and mobility with one network that can be managed or accessed remotely.

Why Choose SIP.US for Grandstream PBX?

SIP is the perfect connectivity companion for the Grandstream PBX.  Customers have experienced savings of up to 60% of monthly communications costs.  Because SIP uses a data network, rather than traditional telephone lines to route phone calls, clients enjoy new capabilities, such as call data reporting and fault tolerant DID routing.

  • Lower Cost –  SIP calling reduces telecommunication costs in two ways.  Because expensive traditional telephone lines are no longer need, they can be eliminated along with the contracts that go with them. Next, SIP trunks from SIP.US include unlimited local calls and long-distance to the contiguous US and most of Canada.  Thus, long distance charges can be sharply reduced or completely jettisoned. The Granstream PBX is available at an unprecedented price point without any licensing fees, costs-per-feature, or recurring fees.
  • Tier 1 – Redundant Network – SIP.US uses Tire-1 upstream providers to rout traffic for our customers. This means you get the best quality voice along with a redundant platform that ensures performance and reliability. We employ multiple gateways across the United States to eliminate any single point of failure.
  • Powerful Control Panel– We offer a simple online control panel to easily manage your account.  You can get new DIDs, change your service, modify your billing preferences or even discontinue.

How To Configure SIP for Grandstream PBX

Setting up your Grandstream PBX for SIP is easy. Detailed instructions are available in our configuration guide.  If you’d like us to help walk you through it, enter a ticket on our support site.  We’d love to help.

Why not start your free trial today and see how much you can save with SIP for Grandstream PBX?

SIP for Grandstream PBX Frequently Asked Questions

Any high-speed internet connection will do.  Unlike other providers, we don’t require that you purchase connectivity from us.  Pick the service that works best for your company.  DSL, cable, Metro Etherent and T1 all work well.

Customer Feedback

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

“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

“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, Doddstech

Ready to see it in action?

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