SIP Trunks

Replace your ISDN lines and start benefiting from superior connectivity today

SIP Trunks

We’ll simplify SIP Trunks, making them easy to understand, explaining when to leverage them, without the need to replace your existing equipment and how they will save you money.  SIP trunks will enable you to experience the advantages of cloud functionality, including built-in disaster recovery, alternative routing, and simple administration.  SIP Trunks use any type of data broadband internet connection with good upload speed to connect your business phone system (PBX), to the traditional phone network (PSTN or ISDN).  A SIP Trunk can integrate your existing PBX business telephone system and It delivers telephone lines using an external data connection for making and receiving calls.

Sip Trunk

Replace ISDN Lines 

You must replace your ISDN lines by 2025. Choose a flexible lower cost VoIP alternative, for inbound and outbound voice calls.

Enable Teams Direct Routing 

Use our SIP Trunks to enable  inbound, and outbound  VoIP calls, making MS Teams your phone system.

Gain Resilience 

With SIP trunking in place, the resilience of your telecoms network can be increased in several ways.

Free Calling

Take advantage of free call termination to UK landlines and mobiles, plus enjoy free calls between connected sites.

Cut Costs

Reduce PBX maintenance costs, save up to 50% online rentals and 25% or more on call costs compared to traditional ISDN.

Secure Numbers

Move premises and keep existing numbers even outside of your geographical area.

SIP Trunk Call Manager Service

Keep on top of all of your SIP activity with the Gamma SIP Trunk Call Manager service.  It provides a centralised inbound call management with a host of features, accessed through an easy-to-use web portal and mobile app. 

SIP Trunk Call Manager offers powerful business continuity as standard, giving you the ability to manage your entire number estate and all aspects of your inbound calls. It enables you to consolidate all your numbers onto a single platform, meaning that you’ll never miss a call. 

  • Multiple flexible lines, 
  • Unlimited direct dial ranges, 
  • Caller display 
  • Flexible, independent call divers for all telephone numbers. 
  • Converge voice calls and data onto a single data connection enabling cloud and site based resilience

Want to leverage SIP Trunks? 

Speak to one of our friendly experts.