Protocols used in VoIP

1. Using VoIP technology ProtocolsVoice Internet Protocol is a technology that enables the calls over a broadband Internet connection rather than a phone line.

Some VoIP services only work when you call people who have the same service. Other services work to anyone with a phone call. A number of protocols is used to communicate with the device, the call started and initiate the device that receives the call.

Session Initiation Protocol

SIP is an ASCII protocol can be used to built a multimedia communications between two devices.

This is an intelligent endpoint protocol required because all the information to locate the remote end point and contains to initiate communication between the local device and the remote device. The SIP protocol adopted form in 1995 and the first standard protocol was founded in 1999. The standard was revised in 2002.

H. 323

H. a binary log is 323, borrows the existing communication systems.

It can trace its origins to 1995 and researchers a standard set up for the Protocol of 1996. This Protocol also allows users to multimedia communications between two devices produce. While it's argument is open, some users say that h. 323, otherwise intelligent endpoint is more widespread as SIP for room videoconferencing systems and IP-based video system.

Media Gateway controller Protocol

MGCP is a VoIP for device category control protocol is classified as a protocol.

A gateway is an aktualisiertBeispiel, the interface IP on one side and a kind of interfacesLe provides that are inherited from another phone. 1998 Developed researchers an idea of two separate part that media gateway controller acts as the interface or the media gateway control contains the logic for calling or important part, a gateway split. This led to the birth of MGCP Protocol.