Oh Man, I was able to get this to work on an i2001 phone mostly because it's a ONE WAY handsfree device. I tried it on the UCx from E-MetroTel with an 1210 full handsfree phone and experienced problems. That was because, when you make a page on the UCx, the Handsfree is automatically turned on, so any background noise will mute out some of what you are saying over the speakers.
If I recall though, paging through the Norstar 1100 IP Phones doesn't activate Handsfree so you shouldn't have a problem.
BUT, you will have to open the phone up to get the clearest connection.
I've never actually tried playing with plugging a Headset device into the headset jack on the 1140E and connecting that into an amplifier. It's possible that the paging is broadcast through the headset in headset mode, but like I said, I've never tried that.
Another Viable Option, but external, would be to buy a SNOM PA1, I thoroughly impressed by this device. You can set up an external SIP account through a company such as VOIP.MS, attach a DID to it and register the SNOM device as a SIP Phone. The SNOM PA1 can be at the site of paging and attach to an amplifier at the site of paging. You'd simply dial the DID and the SNOM PA1 auto answers and you can begin speaking. Only problem, is if someone gets a hold of the DID you could have some malicious stuff happen. There may be some ways to enter a passcode with the DID through VOIP.MS, or something like that. Guess you could always buy a new DID if that happens as well. With VOIP.MS, $25 sets it all up and you get about 3,000 minutes.
Joseph Sus Jr. Nortel Enthusiast