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Lakeside House, Quarry Lane, Chichester PO19 8NY
0330 088 2565

IP Telephony & SIP Trunks

Reduce Your Monthly Call Costs

Session Initiation Protocol (SIP) lines send voice and data over one single internet connection. This can either work alongside your existing phone lines or replace them altogether. Calls are routed through the web across the Public Switch Telephone Network (PTSN) using Voice over Internet Protocol (VoIP). Because you’re not using a traditional phone line, calls between your offices can be made without any cost at all, significantly reducing your monthly call costs and line rental charges.

Find out more about SIP Trunks and how they will help you, call our team on 0330 088 2565

Why move to SIP trunking from ISDN?

ISDN will be obsolete by 2025, so you’ll have to move over sooner or later and it makes sense to start taking advantage of the many advantages of SIP now. You’ll be able to start saving money because SIP trunks are delivered over data lines that you’re likely already using for your internet connection. Fewer lines are required with SIP trunking too, which also means fewer charges. SIP trunks also include built in disaster recovery.

Benefits Of An SIP Trunk:

– A reduction of up to 50% in line rental (sometimes even more!)
– Full future proofing
– Built in disaster recovery and continuity
– No need to change your number when you transfer over to SIP- your existing number can be easily ported across using next generation voice switches
– Automated switching to secondary calling routes
– Calls directed to any number you want
– No tie in to telephone exchanges
– Crystal clear calls with HD audio

Eliminate The Need For Call Forwarding

If you’re unavailable to take a call the system will automatically switch to an alternative calling route- this can be anything from a mobile phone to an office in a totally different country. Great news for avoiding unanswered calls and unhappy customers. It’s a flexible and highly scalable business solution too, allowing you to adapt your phone lines and change the amount of channels you have available as you grow. All your numbers will be hosted in one central database, eliminating the need for call forwarding.

Our Promise To You!

We can guarantee you that all enquiries are dealt with by highly trained and experienced IT professionals, not call handlers or pre-recorded messages. When you receive an email from us we promise it’s been written by a living, breathing human who has taken the time to read and understand your enquiry, and we also promise to find a fast resolution so you can get on with running your business.

Need More Information? Contact A Specialist Now!

Telephone: 0330 088 2565 – Email:

Client Testimonials

Don’t take our word for it – here’s what our clients say:

After taking over our IT services in November 2011 LMS have continued to provide a top-quality service for our entire IT system.

Justin Neal

Homewise Limited

LMS Group have been providing my IT and telecoms support for almost one year now. I have found all members of the team to be friendly, helpful and knowledgeable.
The cost was so reasonable that I asked them to check if they had invoiced me correctly.

Jane Blaber

Liberty Bookkeeping

The new dedicated leased line has made a very positive impact on all we do here and the new phone system is also making us much more efficient.
In addition, I would like to praise the service LMS provide when we call for assistance for anything from computer queries to aiding in setting up Dropbox for business for us.

Annie Haak

Annie Haak

Call and Book Your FREE IT Infrastructure Assessment Worth £1,500

Proud To Be Partnered With The Best

These are just a few of the companies we partner with in order to supply your business the best results.

Contact us

If you think we can help your business, or if you have any questions, please feel free to contact us using the details below.

Get in touch


LMS Group, Lakeside House, Quarry Lane, Chichester, PO19 8NY


0330 088 2565


ICO Registration Number: Z3394162.
Registered in England and Wales No: 7125975