What Is B Channel?

B Channel refers to the vehicle stations for an Integrated Services Digital (ISDN), Fundamental movement Interface (PRI), moreover T1 communications attachment. An ISDN PRI plan with 23 channels (voice) has one PRI D . This is called a 23B+D course. Associations that provide close and distant voice connections can use ISDN PRI affiliations.

This is regardless of the application, such as video conferencing or faxing. A PBX telephone system gives the D station a greater reach. It makes it faster to establish up including pull out PRI calls than normal voice T1 lines or telephone lines. This allows for amazing features such as Caller ID, Direct inner dialing (DID), and advanced call control. The PRI can also be referred to as Voice Channels and Bearer Channels.

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