Lines and calls

Analogue lines, SIP Trunks and Broadband can be provided as part of a whole communications solutions, an upgrade to an existing system or as a stand alone proposal.

ISDN2 lines will be turned off by BT in 2024 to coincide with better fibre connection across the UK.

So it is the time to upgrade your existing PBX to SIP Trunks.

SIP Trunks are a form of telephone line that connects your business to the Public Telephone Network (PSTN) using a data circuit and Voice over IP (VoIP), rather than traditional BT analogue or ISDN lines.

Compared to ISDN, SIP Trunks are less costly per channel and more flexible in how and where geographic telephone numbers can be used. They’re also quicker to install and provision and, as standard, they deliver robust business continuity.

The service can support connections ranging from two channels for small businesses to an unlimited number of channels for large enterprises and contact centres.

Business SIP Trunking is now the standard for any business needing voice calls. With one-off and monthly rental costs being up to 70% lower than ISDN, businesses can stop spending high amounts on telephone lines. Call charges are also currently increasing on ISDN but decreasing with SIP meaning even more money can be saved.

So, whether you are moving office, looking to reduce costs or consolidate lines at multiple locations SIP trunking is the solution of choice.


Benefits of SIP Trunks

  • Business grade call quality
  • Highly scalable at short notice – easily increase or decrease the number of channels as required
  • Divert calls to a predetermined backup destination
  • Port existing numbers to our SIP network
  • Numbers available from all UK dialling codes, regardless of your geographic location
  • Saves money on call costs and line rental

Gaining the correct broadband speed is also essential to any trade or service and our consultants can research the best speeds for your area; in a competitive price plan.

This can be for just Data or Voice on separate lines or converged for both.

Lines and Calls Terms and Conditions

Protel Communications

Raleigh House
The Wellsway
Bristol BS31 1HS

Bristol Head Office -
0117 9864777
Bath Office -
01225 617 771
Cardiff Office -
02920 021336


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Protel Communications

Raleigh House
The Wellsway
Bristol BS31 1HS