VOIP
The PBX is an essential part of any business telephone system to provide a connection between the internal telephones and the public telephone network. The PBX server registers the VoIP-enabled phones and establishes a connection with the IP PBX when a call is made. With the IP phone system, two users' phones can be connected and maintained as needed, but will otherwise be dropped when the phone is hung up. In addition, information can be provided for billing purposes.