I took over the maintenance on a Partner ACS system with a Partner Mail Rls 3 PC Voice Mail. It has a RLs 6 processor and three 308EC modules. The last module is a 206 Rls 4.1 that has 4 analog ports connected to the Voice Mail. They started having the usual static issues on the Voice Mail ports. I tried replacing the 206 with a 308EC for the analog Voice Mail ports but had a problem with port 3 continuously calling ext 10. I rebooted everything with no luck. I verified that the voice mail ports were right in program #505. Everthing else seems to work. I had to put the 206 back in and the problem went away. Is there a compatibility issue with the Partner Mail Rls 3 and the 308EC Rls 3?