SIP Trunking connects your PBX and IP-based networks enabling full PSTN breakout on the public telephone network.

Connection from your site or sites to the network is via an IP connection, for example broadband or Ethernet, and is delivered as an end-to-end service with an availability guarantees voice channel guarantee, and voice quality of service assurances. 

SIP Trunking is suitable for any size of business from small businesses to large enterprises and government organisations that currently have PBX, Unified Communications solution, or key system. Here are some typical examples of how SIP Trunking is being used.

 Moving Premises 

Businesses looking to move out the local area who want to keep their business critical number without paying for expensive call forwarding type services. 

 Disaster Recovery 

Companies looking to have disaster recovery measures in place to provide a resilient phone service to cope with an emergency. 

 International Businesses

Linking offices and taking advantage of free internal calls from one office to another, even where the internal calls cross international boundaries. 

 Local Presence 

Customer service driven businesses where a local presence is important across the UK and multiple UK numbers can be delivered into one single service centre.

 Multi-site organisations

That are looking to aggregate individual site PBXs and lines into a resilient centralised solution. 

 Seasonal voice capacity requirements

For example businesses with seasonal voice capacity requirements - where more lines for a sales campaign for example can be quickly and easily implemented with no long term commitments. 

With SIP Trunking you get a service that is more robust and cost effective than ISDN. And because SIP Trunking is an IP based telephony service, you also get number flexibility which gives you a whole host of other added benefits that can solve real business issues.  Here are some on the ways in which you could use SIP Trunking:

 PBX on your premises or in the cloud

Using SIP Trunking, your PBX can be located either at your company site or housed within a hosted environment at our secure data where you do not need to be concerned about space power or support engineers to look after your PBX. Either scenario is possible, and for added resilience and flexibility you may wish to use a combination of both support models.

 Business Continuity

Use SIP Trunking to protect your office enviroment due to disaster such as fire, flood or other natural disaster. If one of your sites has to close in an emergency, and you need the calls routed to another site immediately, SIP Trunking can do this at no extra charge. There are no call forwarding costs for each inbound call and set up at your new location is quick and easy. 

 Disaster Recovery and Service Resilience 

SIP trunking can be used to enable Disaster Recovery and Service Resilience.  Learn more about our Disaster Recovery Systems.

 Multi-site Rationalisation 

If you have multiple sites and ISDN connections into individual PBXs at each site, using SIP Trunking can reduce the number of ISDN connections that your business requires and also reduce the maintenance costs on all of your various PBXs.

At the remote sites you are left with just the cost of an IP connection and the handsets that you need and you can then pull all the telephony traffic back into your centralised PBX.  Added to this you are also increasing your resilience because you can build into your communications strategy for lines and calls an automatic fail over system should your main site go down. With SIP Trunks you can instantly centralise and distribute the calls somewhere else, to another site or to home workers for example. 

 Business Relocation 

Number flexibility with SIP Trunking means that you can keep your existing number, even when moving out of area, saving you costs on printed company literature and stationery whilst maintaining the perception that you still have a presence in the area you've moved from. We can easily transfer your old or existing numbers to SIP Trunking so that you can avoid expensive Remote Call Forwarding (RCF) or call diversion charges.

 Flexibility with your phone numbers

Allows you to move office and keep your same geographic number without any on-going call forwarding costs and costs associated with new company stationery.

 Business Continuity

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

 Line rationalisation

For businesses with multiple sites, SIP trunking provides ISDN line rationalisation options and reduces the number of PBX's you need to maintain- all with full control of the numbers associated with your business.

 Save money

IP connectivity costs less than ISDN with lower call costs, free internal calls between extensions and offices (including international calls) and lower line rental costs for multi sites. Also no expensive call-forwarding costs are required should you relocate or need to divert calls in the event of a disaster. 

 Resilience 

A phone service that will cope with any situation and give you 100% up time on your telephony. Whether you need to keep your business running without expensive call forwarding costs in a disaster or emergency or you need to load balance your calls between sites during peak hours, SIP Trunking delivers. 

 Voice and internet convergence 

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