In order to dial another SIP/VoIP provider, you must type 275, followed by the providers shortcode, and then their extension. This means that if you dial, for example, 275*350 followed by the users extension, this will patch the call through to the VoIPFone network.

A list of different shortcuts are below. Please let us know if you need to contact any providers we haven't listed and we'll add a shortcut.


*258 voiptalk.org
*211 sipgate.co.uk
*777 sipgate.de
*747 proxy01.sipphone.com
*478 iptel.org
*285 sip.calluk.com
*324 sip.gossiptel.com
*637 sip.gradwell.net
*768 sip.plus.net

If you can not find the network you require, please see the 'provider white pages'.