Centralised CUC - SME - Leaf Clusters - MWI

[Tim Walker]

Hi all.

I have a customer that is collapsing back their 3 x CUC clusters to a centralised one hanging off their existing SME cluster. We are just in the pilot phase at the moment but I cannot get MWI working from the CUC to the SME and across to the leaf cluster. Moreover, I can't find any documentation on CCO or anywhere about how this should be configured. Unless it doesn't need any special config and should just work? I assumed so some SIP notify relay would be required from the SME to the relevant leaf cluster? 

All the SIP trunks for the CUC to the leaf cluster have ticked:-

Accept out-of-dialog refer
Accept unsolicited notification
Accept replaces header
Any information or pointers you can give me would be much appreciated.

[Mohammed al Baqari]

Its straightforward and you got the ticks right. Just make sure that this
is extended on the trunk between CUC and SME as well.

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[Tim Walker]

Found the issue, it was because the inbound CSS for the CUC trunk to the SME didn't have the Global Learned E164 Numbers partition for ILS learned E164 patterns.

So it was that easy!

[Mohammed al Baqari]

Good catch :)