Having trouble with ring no answer into a Unity system used as a Auto-attendant.<br>I need to know the correct configuration for the service parameters for CallManager. CCO says a few different things.<br>In the integration guide http://www.cisco.com/univercd/cc/td/doc/product/voice/c_unity/unity30/integuid/callma31/itcicmip.htm#xtocid223597 it says to configure the VoiceMailMaximumHopCount<br>to twice the amount of voice mail ports that are actually avalaible. It also explains to set the advancedCallForwardHopFlag to True.<br>On CallManager docuementation is explains to set the VoiceMailMaximumHopCount equal to the amount of voice mail ports. It doesn't say anything about setting the AdvancedCallForwardHopFlag.<br>What is the correct configuration?<br><br>
I apologize for the confusion on the documentation. I will work to get it uniform.
The two parameters that you are talking about don't affect the ring no answer timer. The parameter that affects that is 'Forward No Answer Timeout'. This parameter designates the number of seconds to wait before forwarding on No Answer Condition.
'AdvancedCallForwardHopFlag' is a service parameter that should be set to true only in large installations (with more than about 16 voice mail ports forwarded in a chain) that use a hybrid centralized/distributed configuration. Each cluster consists of two nodes (or three) with only one CM actively handling calls at any time. The parameter basically allows the call forwarding feature to track the busy/idle status of what it thinks are voice mail ports so that it can skip call forwarding hops.
As for the VoiceMailMaximumHopCount parameter; I feel that you should set it to the amount of ports that you have rather than double the ports. So if you have 16 ports than the parameter should be set to 16.
Keith Chambers Unity Technical Lead Unified Voice Team, San Jose Cisco Systems firstname.lastname@example.org
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