SIP Trunking Overview

SIP Trunking is the best and most common method for connecting your IP-enabled PBX to the public telephone system via your broadband connection, eliminating the need for traditional phone service.

Amernet SIP Trunking has enabled businesses of all sizes to save compared to a traditional ISDN-PRI or analog phone lines. We ensure optimal performance by closely managing our voice-optimized network for exceptional reliability, availability, security, and quality of service.

Advantages of Amernet SIP Trunking include:

  • Compatible with the large majority of IP PBXs. See our extensive list of IP PBX Manufacturers.
  • Compatible with any TDM-based PBX or legacy CPE phone system using an Integrated Access Device (IAD).
  • Minimize long distance costs with your choice of either the Unlimited Long Distance or Unlimited Local with Long Distance Minute Bundles Calling Plans.
  • Low international calling rates.
  • Business Continuity. Ensure call completion in the event of an outage on your network.
  • Call Bursting. The ability to utilize additional call sessions above your purchased amount for peak call times.
  • Security. Lock down your registration to a specific IP address to prevent fraud by disallowing registration from other locations.
  • SIP demo program. We can set you up in minutes and you can test our service for free.
  • Network-based redundancy. Provides failover should an outage occur on our network. We utilize DNS-based SIP Trunk registration giving you guaranteed redundancy.
  • Customize your service with add-on features such as automatic fail-over, enhanced DID with 911 service,  extra toll-free numbers, and call bursting.
  • Choice of standard G.711 or compressed G.729A codec.



Certified IP PBX List

Amernet is continually working to expand the number of IP PBXs that are Amernet lab-certified to operate with its Session Initiation Protocol (SIP) Trunking service. When Amernet lab-certifies IP PBXs, Amernet ensures interoperability and seamless operation between the manufacturer’s IP PBX and Integra’s SIP Trunking. Below is the list of manufacturers’ IP PBX systems that are Amernet lab-certified with Amernet’s SIP Solutions Trunking service. 

PBX Vendor Model
3CX C3x Phone System
Adtran 7100
Allworx 7XXX
Asterisk Open Source
Asterisk IPitomy

BCM50, IP Office

Avaya IP Office
Bicom PBXWare Server
Cisco UC5xx, Unified Communications Manager (UCM)
Cisco Call Manager Express
Digium Switchvox
DrayTek Vigor IP PBX 2820
Fonality Trixbox
HP/3COM VCX via SIParator/Mediant
IPitomy 4.8.8
Iwatsu ECS via SIParator/Mediant
Mitel MCD/3300, 5000
Panasonic KX-NCP, KX-TDE
Shoretel CM via SIParator/Mediant
Siemens OpenScape
Toshiba Strata CIX, IPedge
Zultys MX30 / MX250
Enterprise SBCs  
InGate SIParator
AudioCodes Mediant 1000 (INTEROP W/LYNC)
Network SBC  
Acme Packet SBC Net-Net 3000/4000