I have set up 2 option 61 switches with PRI tie lines. I have used CDP. In one direction the tie-lines work as they should. However in the other direction no calls can be made over the tie-lines.
I set ld 96 to output DCH messages to help troubleshoot this and it seems that the calls are not getting to the d channel.
To check if I set up the CDP properly I deleted the trunks and when dialing to this tie I get the "ERR629 0 24" message which tells me that the calls are being routed to the correct trunk group.
I tried changing the NCOS and TGAR but it did not help.
If anyone can be of help I would appreciate it.