Use IP Communications to talk to anybody in the world
IP COMMUNICATIONS
An analogue telephone adapter can often be used in conjunction with a call plan from an ISP to provide cheap calls for VoIP users.
More often than not now, businesses are using their own computer networks to provide their staff with telecommunications equipment.
Rather than using the expensive forms of traditional communication, many businesses now use VoIP rather than the copper based alternatives of telephony.
Voice over IP uses a variety of implementations, these include: SIP/RTP IMS H.323