This is a device allowing a user to make VoIP calls using session initiation protocol (SIP). SIP is a telecommunication technology developed as a fast, easy standard for delivering IP-based data, voice, and video communications.
A hosted PBX telephone system connects all of your employees to each other and to your clients, no matter where they are. Main office, home offices, satellite offices, mobile workers and even international offices can all be accessible through a single ph
Read more