Voice over Internet Protocol (VoIP) calling is most convenient when using a mobile phone. BlackBerry users have plenty of choices when it comes to picking a VoIP app that is compatible with their phones so that they can take the convenience of VoIP calling with them anywhere.
Hosted telephony supplier FLR Spectron specialise in business VOIP (voice over IP - voice over internet protocol) and SIP (session initiation protocol) using the new BT Hosted solution. Tel 0845 899 9900