Pabx

Explanation of PABX
Private Automatic Branch Telephone Exchange System PABX Provides Telephone Switching in an office or hospital. A PCM Based PABX Provides all the facilities like a public telephone Exchange (LOCAL EXCHANGE). In large organizations it is normally used her different persons for the telephone facilities. this is done by installing an PABX in the building the Block Diagram of PCM based PABX is shown in above flg. which consist of following main parts.

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