Session Initiation Protocol (SIP) Trunking, or SIP Trunking, is an IP trunk service that can be configured to support both traditional Private Branch Exchanges (PBXs) and IP-PBXs. SIP Trunking can be an IP replacement for traditional Primary Rate Interface (PRI), T1 and analog line PBX interfaces, or can be delivered natively to an IP enabled PBX.


Delivered over TelxMedia s’ private Ethernet network, SIP Trunking connects a customer’s premises-based PBX to TelxMedia s’ advanced soft switch network, routing voice calls to the Public Switched Telephone Network (PSTN). SIP Trunking can be provided over the same Ethernet circuit that provides your Internet access, eliminating the need for separate voice and data transport.


In addition to basic voice packetization, SIP Trunking supports all traditional functionality associated with PBX interfaces, like call control, and network-supported features, such as caller ID and CNAM


Benefits of SIP Trunking

Get the value of a converged IP solution:

  • Support advanced communication capabilities
  • Enable the enhanced features of your IP-PBX
  • Achieve a lower cost with a single network connection vs. multiple voice and data lines
  • SIP Trunking is more scalable than PRIs or T1 solutions – easily add more trunk channels
  • If bandwidth is dynamically allocated between voice and data traffic – when no voice calls are made, all bandwidth is available upon demand for Internet access

Lower capital expenditures:

  • No need for costly phone or PBX equipment upgrades or capital expenditures
  • Extend the life of your existing phone equipment
  • Lower cost per month than traditional PRIs, with a package that includes all the features you would normally pay extra for
  • TelxMedia’s Calling Plans are available at competitive rates

Reduce the strain on your IT staff:

  • Simplify your network management; you no longer manage separate lines for local, long distance and Internet
  • Spend less time dealing with vendors
  • Enjoy 24X7 management of your connection, plus proactive monitoring and troubleshooting
  • Avoid the costs and disruption of training staff on new phone systems

High quality:

  • All calls are routed over TelxMedias’ network, not the open Internet, and connections to our network are monitored and maintained to ensure high voice quality
  • Voice calls are given priority over data to ensure high voice quality.

Enhanced features and functionality:

  • IP-based trunks and Ethernet connectivity enable the enhanced features of your PBX and keep your business connection on the cutting edge


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Hosted PBX & SIP Trunking