SIP Trunking Providers - Compare 2014's Best SIP Trunk Services

SIP Trunking services are offered by many of the top providers in country. Our comparison charts below are designed to help business consumers find the perfect SIP Trunking provider for their company's specific needs. We breakdown and assess key factors of SIP such as reliability, uptime, features, and prices.

Company
Plan Features
Price
Setup
# Porting
Money Back
Reviews
More Details
8x8 Inc.
#1 Market Leader Award
Easily Deployable
Unlimited Extensions
Integrate Existing System
$19.99 Free Free 30-Days
4.3 / 5
4.34562
Flowroute
Awarded #1 Fastest Growing SIP Provider
Free Trial, No contracts, Carrier-grade Quality
Top-tier USA Based Enterprise Support
FreeSwitch, Asterisk, 3CX Support (+more)
$17.95 Free Free Cancel Anytime, No Fees
4.4 / 5
4.42857
Nextiva
Amazing Service Guarantee
Unlimited Nationwide Calling
Keep Your Existing PBX System
Easy Setup - No Contracts
$14.95 Free Free 30-Days
4.6 / 5
4.63025
Voxox
US & Canada Phone Numbers
Free Calls Between Office Locations
3 Trunk Minimum
International DID Coverage for 60+ Countries
$9.99 Free Free 30-Days
4.0 / 5
4.04762

Latest SIP Trunking Reviews...

The monthly phone bill from my previous...

"The monthly phone bill from my previous provider ran around $140.00 a month with no long distance. 8x8 saves me over $50 a month. Easy to set up as well. We... "

Exceptional Service...

"Had business service with Verizon, they charged $69.95 for basic service before taxes and with taxes & other fee's the amount quickly sky rocketed to over... "

You need to be pretty tech

"You need to be pretty tech savvy to use this service. I was promised a more of a ready to go system, but got stuck with having to learn the IT ropes the hard... "

We've been with 8x8 for about...

"We've been with 8x8 for about a year. We were very ambivalent about what we "needed" hearing from multiple other companies that we needed special routers,... "

New to SIP Trunking? Start Here:

What is SIP Trunking?
SIP Trunking (Session Initiation Protocol) is a VoIP communication system using your internet connection to make and receive large volume of phone calls with optimal functionality. SIP services are offered by most VoIP providers for both small and large businesses. SIP integrates your voice, video, data and internet service into a single line. “Trunking” is a term that dates back to the days of telephone service to describe a large number of telephone users sharing a smaller number of communication paths. With SIP, all calls are local calls, and you don't even need a phone line. Click here for an in-depth explanation of SIP Trunking.

Advantages of SIP Trunking Services

The advantages of SIP help level the playing field, making it easier for small businesses to appear large and professional, and easier for large businesses to maintain a local presence. Either way, the most important feature of any system is that it be reliable and add to your bottom line. SIP VoIP business services specifically, help you do just that.

- Very inexpensive calling
- Future-proof technology and ease of scalability
- Ability to take your number with you if you travel or move offices
- If one office has a network outage, calls will be routed to other offices
- Good for medium and large business with more than 25 phones
- Good for businesses with international offices
- Enhanced 911/Emergency calls

How Will SIP Trunking Help My Business

Before SIP, you needed a Primary Rate Interface (PRI) to carry voice, data, and video over one line. A PRI is a physical device that you had to purchase along with the calling plans from your phone provider. With SIP, your provider sets up a proxy server, also called a SIP proxy, which provisions incoming, outgoing, and PBX calls. Nothing is on-site. Instead of an IT team, or IT contractor, your provider takes care of all technical support, saving you time and money.

If you have to temporarily shut down a location, SIP trunks will automatically reroute calls to other locations and extensions. Let’s say there is an unexpected power outage during the day. Calls can be rerouted to a satellite office.

For companies that have an international presence, or are looking into outsourcing, SIP can take your business to the next level. You can have customer service staff spread across the country or even the world.

SIP Trunking combines your voice, video and data networks into a single line. That's right - local, long distance and broadband Internet service all rolled into one. By dynamically allocating your bandwidth you can keep your real time traffic on the internet, and off the PSTN as much as possible. This gives you several advantages over traditional telephony, and even over older VoIP protocols. Before SIP, you needed a Primary Rate Interface (PRI) to carry voice, data, and video over one line. SIP Trunking eliminates the need for BRIs (Basic Rate Inerfaces), PRIs, and PSTN gateways. With SIP, your business VoIP provider sets up a proxy server, also called a SIP proxy, which provisions incoming, outgoing, and PBX calls. Instead of an IT team, or IT contractor, your provider takes care of all technical support, saving you time and money.  Read more on How SIP Trunking will help your business.