Monday, February 20, 2006

PRI In INDIA

Well there are three major Telco's in India at the moment who offer PRI to subscribers
Thus if you were to terminate them on to your cisco router , you shall need to know one very important parameter.

The FRAMING
So here they are
TATA : crc4
RIC: crc4
BSNL/BBNL/MTNL: no-crc4

So your config for the E1 controller would look like for a BSNL/BBNL/MTNL PRI circuit

isdn switch-type primary-net5
controller E1 2/0
pri-group timeslots 1-31
framing no-crc4
no shut
description : ISDN PRI (XXXXXX)

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