BCM50 R3 and 1100 Series Expansion Models

[robl3000]

Has anyone had issues where the 1100 series IP KEMs will reboot spontaneous and frequently on a BCM50 R3 (and all updates as of late January)?

I have an 1140E phone with 1 KEM (as an eCAP) and it worked perfectly for about 6 months. I added 2 more KEMs, for a total of 3, and that is when the problem started. The moment there were 3 modules connected to the phone, it seemed like about every 45 seconds, the modules would start flashing the display and re-initialize.

I have tried to disconnect and reconnect them to make certain there was no loose connection. The problem persisted.

Next, I removed the old, original KEM, leaving only the 2 new KEMs connected. Again the phone was rock solid. I proceeded to add the old KEM again, and the problem came back.

I reverted back to just the old KEM and there was no problem. It seems that the moment there are 3 KEMs, it just becomes unstable and repeated restarts the KEM.

Has anyone seen this problem and have any advice?

 

[gwebster]

Try doing a force download of the firmware to the 1140E.

 

[robl3000]

gwebster:

Thanks for the suggestion, but that didn't seem to resolve the issue. I still have the KEMs rebooting every few minutes if all 3 are connected.

 

[gwebster]

Check that you have C4L or later firmware on the 1140E and that you have v142 on the Expansion Module (you can check that last by looking at the screen of the module when you power up the phone).

 

[robl3000]

Phone firmware is 0625C4L, and all 3 modules are: i00v142 v115.

 

[Khosher]

This is from nortel's tech bulletin - they are working on it

ISSUE: KEM modules connected to IP phone sets may experience connection issues
RELEASE: BCM450 R1, BCM50 R3 and BCM 4.0
CR: Q01957461 - BCM450 R1
CR: Q01957461-02 BCM50 R3
CR: Q01957461-03 BCM 4.0
SYMPTOMS: The first KEM should function without issue, but subsequent KEMs may experience connection issues.
WORKAROUND: None
STATUS: Design is working on a solution: Unistim 3.2 is under development.
RECOMMENDATION: Please contact Nortel Technical Support and open a case if you believe you have a system with
any of the symptoms above.