I did something similar about 18 months ago, extension dialing between Cisco Call Managers and a Nortel Opt 81. Being in the US, I was using mutliple T1’s. I can’t imagine that the E1 signaling is that far removed, but anything’s possible.
Anyways, I tried qsig, and then ni2, before settling on dms-100 on the line protocol. QSIG and NI2 both “worked” to some extent, but dms-100 allowed for extension dialing from both sides without passing the full 10-digit caller id, as well as vmail functionality from the Cisco side to Meridian Mail. I never did get it to accept the # to skip entering the mailbox number from the Cisco phones though. That and the MWi. But other than that it works like a champ.
Let me know if you’re willing to try this and I’ll post or send you some sample configs for both systems. Not sure how dead set you are on using qsig.
First, make the dlop entry. Note also that this is using msdl instead of a ddch. Nortel DCH Programming
ADAN DCH 77
PARM RS422 DTE
RLS ID **
Nortel Route Programming
DCNO 0 *
TIMR ICF 512
FRL 0 0
FRL 1 0
FRL 2 0
FRL 3 0
FRL 4 0
FRL 5 0
FRL 6 0
FRL 7 0
Nortel Trunk Programming (just do a “new 23”)
TN 077 01
RTMB 18 1
CLS CTD DIP CND WTA LPR APN THFD HKD
Summarized Cisco 6000 T1 Gateway Programming
I can't seem to upload images, but I've got screenshots of these configs. I'll email them to you. If anyone else wants them can someone show me how to attach the images?
I’ll be trying my hand at integrating *, Nortel, and Cisco as soon as my request to use Asterisk has been approved by my legal group. I can’t imagine Cisco being any more difficult to configure than *. The config examples that I’ve seen for tying Cisco to * show similar configs (I mean the actual configs, not the interface for making those configs). I’m looking forward to trying it out.
I have similar problem. I need to transfer call using Q.SIG signalling and legacy Siemens PBX. I’m programmer and my knowledge about ISDN is very limited. For now I’m interesting is it possible at all? Please give me some advice.