The 1120e and 1140e are compatible on the BCM 50/200/400. I am not sure of the BCM 1000. The 1100 series expansion module is only compatible with the BCM 50 release 3. All documents are on the Nortel site.
I had exactly the same problem at a Danish site with a new BCM400 Rls 4.0.
It also was powered down for the weekend and on power up all IP phones worked fine.
I however didn't dare to use it at the customer site.
It wen't back to Nortel as a DOA.
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