SIP Trunking
Boost Service & Savings
Give Your Phone System a Makeover
- Reduce Costs Up to 70%
- Get Unlimited Calling
- Improve Business Continuity
- Scale Quickly
- Unlock UC Features
Extend the Life of Your PBX
Thinking about moving to a cloud-based business phone system to get more modern functionality? Not quite ready to replace your existing on-premises phone system? No worries. There’s another option — NetFortris SIP Trunking.
With SIP Trunking, you can add new IP capabilities, extending the life of your phone system and take the first step toward cloud communications. Plus, you can save money!

Enhance Services & Savings
It may sound too good to be true, but we’ve helped thousands of businesses get more and pay less with SIP Trunking. Here’s how:
1
Swap Pricey Lines for Internet Links
First, we deploy an ATA or voice gateway at your location to connect your existing Private Branch Exchange (PBX) or Plain Old Telephone Service (POTS) block to the Internet, replacing expensive analog lines and PRIs/T1s.
2
Enable Feature-Rich Calling
Then, we use Session Initiation Protocol (SIP) to define call paths over the Internet connections and deliver advanced communications functionality, such as call forwarding, auto attendant and simultaneous ringing.

PRI or POTS Replacement
SIP Trunking works not only for IP-enabled PBXs but also as a cost-effective POTS replacement with the addition of simple appliances — analog telephone adapters (ATAs) or voice gateways — installed at your premises.
For businesses with POTS lines: ATAs with 2, 4 or 8 ports
For larger offices with POTS lines: Voice gateways with 16, 24 or 48 ports
For offices with a PBX and average call volumes: Voice gateways supporting 1PRI, E1/T1
For offices or call centers with a PBX and high call volumes: Voice gateways supporting 2 PRI, 1/T1
Ready to Get More from Your Phone System?

A Simple Solution for Complex Work
SIP Trunking is easy to implement, lowers your monthly expenses and opens the door to IP-based communications, enabling you to compete more effectively in the post-pandemic world of remote and hybrid work.
With SIP Trunking, you can easily stay connected with call forwarding and alternate routing.
EASY TO USE & EASY TO BUY
SIP Trunking is as simple to order and provision as it is to use.
1
Select Your SIP Sessions
2
Choose Your Calling Plan
3
Pick Your Phone # Features
Simultaneous sessions (call paths) per person:
- 1:1 – heavy call volume
- 1:4 – average call volume
Unlimited Local and Long-distance
OR
Local and long-distance minute bundles
- 500
- 1,000
- 3,000
- Basic DID = Phone Number Only
- Standard DID = Basic + Caller Name (CNAM) Lookup for Caller ID
+ E911 - Enhanced DID = Standard +
Management Portal
1
Select Your SIP Sessions
Simultaneous sessions (call paths) per person:
- 1:1 – heavy call volume
- 1:4 – average call volume
2
Choose Your Calling Plan
Unlimited Local and Long-distance
OR
Local and long-distance minute bundles
- 500
- 1,000
- 3,000
3
Pick Your Phone # Features
- Basic DID = Phone Number Only
- Standard DID = Basic + Caller Name (CNAM) Lookup for Caller ID
+ E911 - Enhanced DID = Standard +
Management Portal
Select Additional Options
Toll-Free Inbound Calling
Toll-Free Inbound Calling
Bundles of Minutes:
- 5,000
- 10,000
- 25,000
- 50,000
- 100,000
Enhanced Alternate Routing
Enhanced Alternate Routing
As an alternative or addition to remote call forwarding, NetFortris can program alternate call routing for improved resiliency.
Burst Sessions
Burst Sessions
Instead of buying call paths for peak calling capacity, save money by reserving the option to burst beyond your contracted SIP sessions.
Web-Based Management
Web-Based Management
Manage features tied to enhanced DIDs through an intuitive portal. Control call forwarding, simultaneous and sequential ringing, and Do Not Disturb.
Benefits of NetFortris SIP Trunking
From cost savings to scalability, SIP Trunking delivers a range of benefits to your business.
Reduce Phone Costs
SIP Trunking replaces traditional POTS lines or PRI/T1 trunks, which can save up to 70% on your company’s monthly phone bill.
Unlock UC Features
SIP support for call data and multimedia gives you access to advanced UC features like call forwarding, auto attendant, simultaneous ringing and more.
Improve Reliability
For no extra charge, we connect SIP trunks through georedundant Session Border Controllers (SBCs) so your voice connections are never down.
Enjoy Unlimited Calling
Our SIP Trunking voice packages include options for unlimited local and long-distance minutes. And internal inter-office calling is always free.
Decrease Downtime
Never miss a call! Send calls to another number with call forwarding or enhanced alternative routing or enable budget-friendly bursting for calling over your plan.
Increase Redundancy
SIP Trunking runs over your Internet connections, including any backup terrestrial or wireless Internet circuits, so your phone system stays up and running.
Scale Cost-effectively
Unlike traditional PRI trunks, which are sold in increments of 23 channels, our SIP trunks are priced by call path, with optional bursting, so you buy only what you need.
Control Calling
Easily manage call functionality like call forwarding, simultaneous or sequential ringing and Do Not Disturb through our intuitive web-based portal.
Burst on Budget
Unlike other providers that charge per-minute rates for bursting over plan, our predictable and affordable monthly flat-rate per call path means no billing surprises.
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Ready for a Phone System Makeover?
Contact a NetFortris Solutions Specialist Today!