SIP trunking

SIP provides a more flexible alternative to ISDN for making business phone calls.

Modern business is increasing its use of data services like email, the internet and online applications. Using SIP means your data connection can be used for voice too. A single, converged voice and data network costs less than separate network connections.

Ideal if…

• You have seasonal or short term demands for increased voice capacity.
• You are purchasing a modern IP-PBX and wish to reduce its upfront and ongoing cost.
• You want to keep your telephone number when you move business premises or close branch offices, even when moving out of the local exchange area.
• You want to consolidate multiple sites into a single network.
• Your business could benefit from a “virtual local presence”, by using geographic number ranges outside your local area code. 

Save money: pay less for business phone line rental, business call charges and IP-PBX equipment – SIP costs less than ISDN interfaces.

Flexible: SIP trunks allow you to use geographic number ranges outside your normal area code.

Simplify: by combining voice and data over a single network connection, you can cancel multiple connections and their associated charges.

Quality: high levels of voice quality and we’ll prioritise your calls over other data in shared connections.

Protected: in-built disaster recovery, network resilience and a fast, seamless transfer all ensure business continuity.

Compatible: our SIP trunks are fully compatible with, and rigorously tested and approved by, the leading SIP-enabled telephone systems manufacturers.

Add value: with the right hardware you can -

• Link people across international, national and regional boundaries through one communications infrastructure.
• Have a single mailbox for all your voice messages, emails and texts and one globally portable number for everything.
  

Here are some typical examples of how SIP trunking can benefit businesses:

A call centre required additional voice capacity to cover a 3 month inbound contract. Because SIP has a much shorter lead time, we were able to provide more voice capacity at short notice, and with just a one month contract, demonstrate 20 fold cost saving over equivalent ISDN30 capacity.

A national franchise had a central 0870 number and locally advertised numbers for their field based franchisees. Because the franchisees were on the road and unable to answer the phone, inbound calls were routed to a central call centre. By using SIP trunks, we were able to eliminate the costs of call forwarding, and demonstrate annual savings of £180,000.