SIP Trunking Provider

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SIP Trunking

Crystal Clear Phone Service

What is SIP Trunking

SIP Trunking is a next generation replacement for traditional business phone services. For decades, SMB's and Enterprises have been buying expensive wire-line voice trunks like plain old telephone service (aka POTS lines), T-1's and PRI's. Today these same trunks can be delivered via IP resulting in lower telephony cost, enhanced features and advanced business continuity options.

When compared to older expensive wire-line services like analog trunks or PRIs, Smartnet SIP Trunks enhance your existing phone system while lowering your monthly telecom spending. In addition, SIP Trunks are much more flexible and reliable. Unlike PRIs that require you to purchase and pay for 23 voice channels or analog lines that include no long distance, both with high price tags, SIP Trunks can be purchased in any quantity for less money. Plus adjust your concurrent call channels on demand with no penalties or lengthy installations times.

Flat Rate SIP Trunking Service

With Smartnet as your SIP Trunking Provider you're sure to receive crystal clear voice quality with Unlimited Calling in North America for one low flat rate. Our SIP Trunk Pricing is simple and designed to help your business maintain predictable cost phone service. You can now budget your telecom spending every month and stop worrying about long distance and overage charges.

Benefits of Smartnet SIP Trunking

  • Compatible with All Phone Systems - Our SIP Trunks work with all SIP enabled systems or use any standard phone system with our Free Digital Phone Adapter.
  • Keep Your Phone Numbers - Keep all your existing phone numbers, including Direct Inward Dial (DID) and Toll Free.
  • Transparent Migration - Our No Downtime Guarantee ensures you have a seamless transition when using our SIP Trunk Service.
  • Easy to Deploy - SIP Trunks can be provisioned and setup in the same day with little to changes to your existing phone system.
  • Disaster Proof - In the event your office loses power or is unoccupiable our SIP Trunks can automatically failover to any destination like another office, cell phones or our Virtual Receptionist service.
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  • Phone Systems
  • Features
  • Ala Carte

Smartnet SIP services are compatible with all phone systems. If your system is already SIP enabled then setup and deployment takes just minutes.


Below are some of our custom SIP Trunking solutions:

  • Asterisk SIP Trunk
  • Avaya SIP Trunk
  • Cisco SIP Trunk
  • Microsoft Lync SIP Trunk
  • Mitel SIP Trunk
  • 3CX SIP Trunk

In addition to great cost savings and 24x7 US based support; our SIP Trunks provide the following features and benefits

  • Maximum flexibility in active calls with no voice channel restrictions
  • No more domestic long distance charges
  • National e911 Support
  • Optimal utilization of bandwidth delivering data and voice over the same connection
  • Redundancy with no dependency on any 1 provider
  • HD Voice to on-net destinations
  • Choose from phone numbers in any US state or keep your existing number
  • Instantly grow your business with no additional cost
  • Allows transparent migration; users may retain their current telephone numbers and extensions
  • Multilingual online real time billing and account management
  • All current regulations including E911 and CALEA
  • Toll-free and Direct Inward Dialing (DID) numbers

Smartnet SIP Trunks come with a free phone number, e911 location registration and unlimited calling.

We also offer additional services to make our solution even more powerful.

  • Extra DID's / Phone Numbers from any US State
  • Toll Free 8xx Numbers
  • Phone Numbers from 60+ countries
  • Multi Branch e911 Location Registrations
  • Disaster Recovery Failover
  • Discounted International Long Distance
  • IP-PBX Hosting in our Datacenter
  • PRI-Failover Services
  • Remote Virtual Receptionist
  • Remote Voice Recording
  • Offsite Voicemail Storage with Email Forwarding


How SIP Trunking works

Using the internet like we do for daily critical business operations you're now able to transmit and receive phone calls via the SIP protocol standard.

So how does it work? It's Simple...

Your SIP enabled phone system is connected to a secure high speed internet service. Through this secure connection your phone system will communication with Smartnet's Cloud Telephony Platform. When making or receiving calls our Redundant IP Network will route your voice traffic using one of our 40+ Tier 1 PSTN providers and deliver the call to your phone system.

If your phone system does not support SIP then our Digital Phone Adapter will enable your system to benefit from SIP Trunking services.

Smartnet SIP Trunks only use the internet when there's an active call making them very efficient. Dynamic allocation of bandwidth is another feature that makes SIP Trunking a better business phone solution.

Get Started! Call Now 1-888-284-0802

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