Ok, I've been reading through lots of forums, and I thank those here for all the good stuff on converting 1100-series to SIP, etc.
But I'm running into a really stubborn issue with using some 1120SA (1120E with some interesting modifications, but runs 1120E firmware) phones with 3CX. Now, back in
https://forums.networkinfrastructure.info/nortel-ip-telephony/some-1140e-(sip-version)-questions/ mention was made of re-registering every 30 minutes; but no resolution was posted, so not sure if that poster ever got it working or not.
I've upgraded to the latest SIP 4.3 service pack firmware, and have the recommended settings in 1120eSIP.cfg and users.dat as included from 1120eSIP.cfg. I've also set up automatic login with the SIP[MAC].cfg file with the correct MAC address, and I don't see the 'evaluation license' issue since I'm using the posted users.dat file section that's been posted on here several times.
After 30 minutes, the 1120's are unregistering themselves from 3CX. Further, 3CX is logging, after several hours, that an IP is being blacklisted because of too many authentication failures; that IP invariably turns out to be an 1120 phone.
I've set up the 3CX box's firewall to allow pings, thinking that maybe SIP_PING failure was at fault, but that didn't help. I then disabled SIP_PING, and that didn't help.
I can make the unregister happen sooner by setting REG_REFRESH_INTERVAL to something less than 1800 seconds, but setting it to 86400 seconds (the default) doesn't make it take 24 hours to unregister, it still happens after 30 minutes. (oddly enough, a prtcfg shows that parameter as REG_REFRESH_TIMER instead of REG_REFRESH_INTERVAL.....). It does re-register after several hours (probably the DHCP lease renewal time), but then unregisters again after 30 minutes.
I haven't yet hooked up a wireshark to see what's transpiring on the wire, and that is on my list of things to do to work on this. But the 3CX activity log indicates that the phone is actively unregistering itself.
I was hoping the OP of
https://forums.networkinfrastructure.info/nortel-ip-telephony/some-1140e-(sip-version)-questions/ could report back as to the resolution, but that's been quite a while back and they may not monitor this forum.....
Any ideas would be good, including firmware downgrade, which is also one of the items on my list of things to try.
Thanks in advance.
UPDATES
Downgrading to SIP FW 2.2 didn't help. Downgrading to 3.2 doesn't help, either.
Now, I temporaried a FreePBX install; the 1120SA's with SIP FW 4.3.18 seem to work just fine with FreePBX. For what it's worth, they now show the date and time with FreePBX, whereas they didn't with 3CX.
Also, the OP of the thread I referenced above, leejor, is corresponding with me on this issue on the 3CX forums. If and when we come up with a solution I'll post here for the sake of the archives......