What is VoIP-it?

He (you) (direct inward dialing) is a feature phone system the system on incoming calls to specific extensions without participation can establish a connection by the operator or attendant.

This requires special trunks and DID dedicated blocks numbers receive incoming calls and phone customers who will recognize the right target for each call environment. VoIP (voice over Internet Protocol) is a technology calls on digital installations that "Internet Protocol" is a set of rules for the format and send messages over the Internet or private digital communication lines bears.

A forward

A private branch exchange (PBX) used large and small and medium-sized enterprises in General as your telephone system for internal and external communication and is listed as a single number "Hand".

Phone could be answered by an attendant calls to this number operated main switchboard reply or the console for your PBX. (Responsibility for the attendant or attendants) was to connect your call to the appropriate extension.

Manuel PBX

From all PBX were manual.

This means that to connect to all calls - incoming flight attendant outbound or l - expected users during the extension. A company with only a few hundred extensions may be two or three attendants to work while more their time. More business, flight attendants who were eliminated and more costs.

PBX dial

However, the invention allows the automatic or call PBX extension to their per-user

Close calls to other extensions anddial out calls directly (usually by dial "9"). These systems need analog recording users time and society funds with fewer people.

Digital PBXS and

New digital PBXS were deve

developed to manage tribes DID and automatically forward incoming calls to the appropriate extensions could. Once the incoming calls started have exclusively or in combination with voicemail with numbers, many companies are no longer needed nurses full-time.

A - VoIP and much more

Towards the end of the twentieth century the VoIP become possible and has thus begun to evolve rapidly.

Computer VoIP technology is not just the functionality through the digital PBX (such as DID) combined VoIP offers voice and data networks, providing new and improved features and reduce costs.