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.
R&R Telecom offers carrier-grade switch partition solutions for wholesale resellers since 2003. R&R switch partition service leverages Sonus Networks platform and provides powerful yet intuitive interface to control switch operations.