I am trying to setup a 3725 with 12.2.(8)T5 to use an ISDN PRI that our telco (Telecom Italia) provisioned with the following channels:
- 1-8 are normal channels, capable of incoming and outgoing calls
- 25-31 are incoming-only channels
16 is signalling as usual, and the other channels are unassigned and unusable.
I am now configured with pri-group timeslot 1-8,16,25-31, which means that I am accepting all incoming calls, but half of the outgoing calls must be retried, in some cases many times, before succeeding.
I am using DDR, with local user configuration (no aaa new-model). There are users enabled for callback.
Can anybody think of a dialer/pri/whatever configuration to correctly support this, or a better workaround, other than having the PRI reprovisioned (something I would prefer not to do, due to customer relationships).
Best regards and thanks in advance,