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.
Rendez Ltd delivers and supports IP based phone systems exclusively to business customers. We provide SIP Trunks as well as traditional PSTN call traffic and are able to offer these services nationwide.