Hi All,
We are trying to interface this appliance with an ISDN PBX. Once the connections are made, the alarm on the GUI is shown OK, but still on the asterisk CLI the PRI span is shown as Provisioned,Down,Active. Also, the intense debug shows that the execution of Q921 events is fine till state 4(TEI Assigned), but state 5(Awaiting Establishment)is being unsuccessful and the timer T200 expires repeatedly.

I have seen on many forums that the problem can be resolved by upgrading the asterisk and DAHDI version in the firmware. Regarding this, we have tried  compiling a uImage with asterisk 1.8 and asterisk 1.6 both from the switchfin source code, but errors are seen during compilation. In this menu, we could not find any choice of versions for DAHDI. Moreover, if we attempt to recompile the DAHDI on the board after downloading and extracting the DAHDI 2.6 source code, it shows error of low disk space.

Is there anyone who has been successful in upgrading DAHDI on PR1 appliance? If so , please guide how? Moreover, do inform if there is any other solution you can suggest about the PRI span errors I have stated above.