What is VoIP?

VoIP (Voice over Internet Protocol) provides the ability to make and receive calls digitally over your internet connection. Calls between VoIP and the analogue network are made possible by equipment (such as Media Gateways) creating connections between them.

Using VoIP, you still simply dial the number you wish to call as you would with a traditional phone.  The VoIP system we provide is hosted, meaning the PBX element is held in a secure data centre.

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What is SIP?

Session Initiation Protocol (SIP) helps to start the call and can also be used to start video or other media transfer over the internet. SIP will look up the number you have dialed, find the device you are seeking to connect with and establish the connection once the recipient has answered their phone.

SIP Trunks are essentially virtual telephone lines, in that they create a phone line over your internet connection.

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Darren Owen
Darren Owen
12:17 17 Jul 18
Thank you Carla you have been very helpful throughout this process and happy to answer any questions as many times as you have needed to until we understood. We would definitely recommend you and your company, you are an asset to the team. Thanks again Charlotte Cook from D.C. Electrical (Wales) Ltdread more
Calvin Fullwood
Calvin Fullwood
13:29 12 Jun 18
A great hassle free installation from 4Com. Everything discussed well beforehand, and the engineer (Mark Disley) did a fantastic job. He helped some of our users who were not so familiar with new technology. Highly recommended.read more
Roy Kendall
Roy Kendall
19:31 23 May 18
We met with Mark yesterday who was on time, presented very well. He came to connect up the phones that were already and very quickly here at our site.His manner was confident, polite and reassuring.His level of expertise shone through and he was very easy to work with in a very busy active office.I would for sure recommend his clean efficient work.read more
June Smith
June Smith
15:52 16 May 18
Harrison Ward installed our new telephone system today, we found him to be extremely knowledgeable and very helpful with what must have seemed like a thousand questions. It took slightly longer than he expected due to our internet being a pain, but this was not an issue for him and he was still smiling at the end of a long day. We are looking forward to the training session with Harrison who clearly has the patience of a saint as one of us is a dinosaur with new technology!! 4Com is definitely a company we would recommend to anyone looking for a new Telephony system.read more
Uri Steinberg
Uri Steinberg
08:36 16 May 18
Harrison Ward recently installed our new telephone system, we found him to be very helpful and extremely knowledgeable. He made the installation go very easily without any downtime to our current system. 4Com is definitely a company i would recommend to anyone looking for a new Telephony system.Uri SteinbergMillers AccountantsManchesterread more

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