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SIP Trunks
 

SIP Trunks - phone lines for the modern business

Make no mistake, SIP trunks, no matter what anyone says, are the future of telecommunications. And the current in fact.

SIP makes Geography Irrelevant! SIP makes flexibility Instant!

SIP Trunks

We have 25 years experience in business and telecommunications so we have seen alot of things come and go. Analogue was replaced by digital. Now SIP is poised to replace digital  - ISDN in other words.

It will not happen instantly but we have seen SIP gathering momentum over the last 2 or 3 years.

SIP Problems

SIP has had a lot of bad press - but that is simply due to the connectivity being used and the resellers either mis-selling it or not having enough understanding on how to get it working properly and reliably.

At the time of updating this page (September 2013) SIP trunks have started to replace ISDN in the mainstream.

What is SIP?

What is SIP? SIP stands for Session Initiation Protocol. More telecoms jargon!

There are 2 sides to SIP. SIP trunks and SIP extensions. Please see the dedicated pages on this site for a full explanation of SIP trunks and SIP extensions as it is important to have an understanding.

Basically SIP trunks are phone lines delivered on an internet connection. Normally, such an internet connection for small businesses will be a broadband connection (ADSL broadband or preferably Fibre ADSL broadband). As BT Openreach has been improving connectivity and infrastructure over the last few years, SIP now has a real place within the mainstream. This is particularly true with the costs of high-speed connections coming down and 'proper' same-speed-up-and-down internet connections with Service Level Agreements (SLA'S) becoming much more affordable (like FTTC - Fibre to the Cabinet, EFM - Ethernet First Mile and converged connections allowing the same connection to be used for both Voice and Data).

There are many advantages of SIP trunks - please see the dedicated pages on this site - advantages of SIP. SIP extensions are slightly different and at the time of writing this, are not so prevalent.

The main thing to grasp is that SIP is an international standard in telecommunications. A common language, if you will. All the telephone system manufacturers are making sure their telephone system platforms support SIP so you can be sure it is important.

Basics required for SIP to work reliably

For SIP trunks to work, there are a few critical things that must be considered as follows:

  1. The connectivity must be correct - in other words the internet connection. There must be enough bandwidth. Furthermore, that bandwidth should ideally be delivered by the SIP trunk provider.
  2. The telephone system manufacturer must have tested their system with the SIP trunks from the SIP trunk provider. If this is not in place, good luck! We doubt it will work.
  3. The reseller/maintainer must know what they are doing - believe us....many DO NOT!
  4. If bandwidth is limited, connections must be used JUST FOR SIP (is not also for data) unless a proper 'converged' product is used such as Gamma's IP Assured Converged product which reserves bandwidth for SIP and prioritises the SIP traffic

The main reason for businesses being unhappy with SIP is that one of these critical requirements has been ignored by the supplier, sales person or whoever.

Is SIP cheaper than ISDN?

The most frequent problem we find is that SIP trunks do not work as they have been bought because it is cheaper than ISDN.

Whilst this may be the case, there are alot of sales people trying to sell SIP trunks as they appear cheaper - whilst it is now cheaper, this is only a recent occurence which is due to the better internet connection speeds being available throughout the UK.

Do not be fooled by sales people who tell you that you can just use your current internet connection for SIP and cancel your ISDN - this simply is not true for the vast majority of small businesses. Even for bigger business, there is likely to be some re-configuration of the main interent connection required.

SIP offers a lot of advantages of ISDN including some excellent Business Continuity features - please see the other pages of this web site for details.

We can help with your SIP

If you would like some personal advice on SIP, please call us on 01892 676000 and ask for Paul, Michael or Nick - or email as at sales@firstoffice.co.uk. You could chat live with us if you prefer.

We can micro manage all SIP orders including supplying and maintaining your telephone system.

 

 
 
 
 
 
 
01892 676000
 
First Office Systems Ltd
 
14-16a Albion Road
Tunbridge Wells, Kent, TN1 2NH
 
 
 
 
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