I'm experimenting (using for the first time) with using a cisco3620 to connect to the PSTN via a channelised E1 interface, with * handling all of the SIP calls.

If anyone has any installation tips / help / documentation I would be most appreciative :)

However, my first question is this: when I am in the setup, I see the following:

Current interface summary

Controller Timeslots D-Channel Configurable modes Status
E1 0/0     31        15        pri/channelized     Administratively up
E1 1/0     31        15        pri/channelized     Administratively up

I have set both controllers to hdb3, ccs with crc4

I notice that the D-Channel is set to 15. However, in the zaptel.conf file I use with my TE410p card, the D-Channel is set to 16. So, is cisco counting 0-14 (hence 15 is the D-Channek) and zaptel counting from 1-15 (and therefore 16 is the D-channel) ? Or is my config wrong on the cisco or zaptel ??

Any help would be welcome. Thanks !

Julian
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