| IP-PBX system is a VoIP PBX communication platform that integrates PSTN, GSM, and VoIP all in one. IP PBX system is specially designed for small office, enterprise, and telecome grade applications. With an IP PBX system, users can route PSTN, GSM calls to VoIP to save telephone costs. CHIMA IP PBXs integrates PSTN, GSM, WIFI, and VoIP, they can offer 30-200 extensions (Except the RT series ) to office, enterprise users. |