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Reply To: Calculating E1s and Bandwidth

#41203
Wallis Dudhnath
Guest

A response to Majeed’s question.

E1 and PRI are based on a 30 Channel PCM system. PCM is Pulse Code Modulation. E1 is a 2.048Mbits/s and uses TimeSlots to convey digital information. PRI is for ISDN. The D channel (Delta) is the signalling Channel. By convention, Time Slot 16 is used. PRI is used with a ISDN PABX – ISPBX.