ICCS Call Manager

[t.joy]

Has anyone experienced a problem where more than subscriber exists in a cluster and phones registering with different subscribers cannot call each other. I have checked SQL and the Database is updating both subscribers, but when the phone registers with its subscriber, when looking at CCMADMIN on a different subscriber the phone is not registered. Looking at CCMADMIN on the phones registered subscriber the phone is registered, also the publisher sees the phone as being registered. From what I can determine SQL database is working OK as both subscribers receive changes in the database. The problem I feel is with the active ICCS communications between the subscribers not working. Anyone have any suggestions in rectifying this problem. CCM 3.14b

Thanks

Terry

[marinaibm]

Do you have partitions and caling search spaces on your system?Is it the same for all your ip phones?

[t.joy]

Yes. But its nothing to do with CSS and Partitions. We have moved the phone registration on to the publisher and all works OK there.

[marinaibm]

Sorry, my mistake..didnt read that properly. I have seen a similar problem when there was a network problem and phones were working fine but appered as "not registered" and when you reboot them (hard boot i mean) it takes about 10-15 minutes for them to come up..

[jpstott]

Are you using DNS names or IP addresses in your CCM settings? I have seen problems when DNS fails. Personally, I prefer to avoid DNS problems by using ip addresses for CCM settings.

Also, I have seen Cisco recommend putting static entries for each Call Manager in LMHOST files on each server. (This might be avoided by again using ip addresses.)

I think you are on the right track with the ICSS communications.