I've been trying to setting an E1 Q.SIG link between our 3845VG and an E1 port on a Nortel Passport 7440 (NTEP66).
Layer 1/2 was reported as up and connected and the port in the CUCM 4.2 had an IP address assigned to it, however we were unable to make calls from an IP phone to the passport.
Checked various settings both on the CUCM and the settings on the 3845 port but couldn't find anything obvious.
In the end after lots of experimentation it turned out we needed to tick 'Allow Overlap Sending' within the route pattern configuration for patterns that would be using that port.
I'm not entirely sure what Allow overlap sending does except that it solved our issue! However the downside is that there is quite a pause after dialing the number before the call connects.
Is there any setting that we can apply on the E1 port on the 3845 or similar to achieve the same thing maybe without the delays. From what I can see, it's not sure when the last digit has been entered has the pause.