SIP trunking provides access to and from the Public Switched Telephone Network (PSTN) over the Internet Protocol (IP).
Businesses use SIP trunking to provide cost effective telephone service to their offices through a PBX or individual users in remote locations. It also can enable a business to move existing number ranges to an out of area location.
Why Spitfire?
Spitfire runs its own core network infrastructure we do not resell anyone else’s service
We can provide telephone numbers from geographic areas all over the UK and route them to your SIP service, enabling you to have a virtual office anywhere.
Our SIP trunking has flexible options for providing backup to ISDN lines and vice-versa.
Spitfire can provide all the components necessary to connect your telephone system via SIP including quality IP access and gateways.
We have experience of making SIP solutions work from end to end.
With our dedicated test facility we have tested our service with a variety of manufacturers’ SIP devices including Avaya, PBXnSIP, Solutions 11, Vegastream, Snom, Polycom, Cisco, Linksys and Counterpath.
For further information about how Spitfire can get SIP trunking working for you business please contact sipsales@spitfire.co.uk or telephone 0800 319 6000