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I am now showing the channels, but it is not showing up properly.
Eg. I have a trunk which uses channels 1-47 ( private PRI ) and a trunk that uses channels 49-71 ( PRI from telco ).
All channels appear to be coming in via the 1-47 trunk on the FOP2 panel now.
EDIT: Upon further review it seems that Asterisk is not reporting the proper DAHDI channel in use. I make a call out which goes out via DAHDI channel 49, however it is reporting it under DAHDI/i3.
I can only figure that Asterisk is grouping the trunks via an interface number.
Due to this, I changed in FOP2 buttons to use 1-2 for the first two trunk lines ( two links spanned on one group ) and 3 for the last.
This does not appear to work ( one of the trunk buttons light up but does not associate properly to the correct trunk ).
EDIT: To single out the line in FOP2admin - Buttons, you need to set it to 3-3, otherwise it will generate the lines as if going from 1 to 3. This appears to have resolved the issue.