1 2 aim
  • The power to communicate

SIP Trunks

SIP Trunking Features

SIP Trunking Overview

SIP Trunking enables voice communication between a telephone system (PBX) and the telephone network, and is soon to be a direct replacement for traditional ISDN circuits. Our Business SIP Connectivity has been designed for reliability and flexibility.

Business Continuity

If your office has to be temporarily relocated in an emergency, this can quickly and cost effectively be achieved with SIP Trunking.


Having a SIP connection allows you to move office and keep your same geographic number without any ongoing call forwarding costs. Our SIP Connections also come fully loaded with value added features.

Line Rationalisation

For businesses with multiple sites, SIP Trunking provides ISDN line rationalisation options and reduces the number of PBXs you need to maintain – all with full control of your business numbers.

Save Money

IP connectivity costs less than ISDN with lower monthly rental charges and generally lower call costs as well.


A phone service that will cope with any situation and give you 99.9% up time on your telephony. We'll keep your business running without expensive call forwarding costs during uneasy circumstances.

Voice & Internet Convergence

With IP Connectivity delivered over Ethernet, you can have both a high quality voice and data service all over one connection, giving you significant cost savings.

24/7 Portal Access

New SIP Trunk connections can be added within the Plustel portal by first selecting a SIP CLI, specifying the number of required channels, and then selecting a SIP Trunk Type. You can easily search for and locate any SIP Connections associated with your account.

PBX Vendor Affiliations

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