Hi Diane,
Changing MWI Settings
Messaging waiting indicators (MWIs) control whether Cisco Unity Connection sets MWIs for users and how retries for MWI requests are handled.
To Change MWI Settings
Step 1 In Cisco Unity Connection Administration, expand Telephony Integrations, then click Port Group.
Step 2 On the Search Port Groups page, click the display name of the port group for which you want to change the MWI settings.
Step 3 On the Port Group Basics page, under Message Waiting Indicator Settings, change the applicable settings and click Save.
http://www.cisco.com.az/en/US/docs/voice_ip_comm/connection/7x/administration/guide/7xcucsag240.pdf
Message Waiting Indicator Settings
Enable Message Waiting Indicators
Check this check box so that voice messaging ports in the port group are enabled to turn message waiting indicators (MWIs) on and off. Only the voice messaging ports that have the Send MWI Requests check box checked turn MWIs on and off.
Uncheck this check box so that turning message waiting indicators (MWIs) on and off is disabled for all voice messaging ports in the port group. Even when voice messaging ports have the Send MWI Requests check box checked, they do not turn MWIs on and off.
Default setting: Check box checked.
MWI On Extension
(Cisco Unified CM SCCP integrations only) Enter the extension that you specified in Cisco Unified CM Administration for turning MWIs on.
MWI Off Extension
(Cisco Unified CM SCCP integrations only) Enter the extension that you specified in Cisco Unified CM Administration for turning MWIs off.
Delay Between Requests ____ Milliseconds
Enter the minimum length of wait time, in milliseconds, between subsequent MWI requests.
Default setting: 0 milliseconds.
Maximum Concurrent Requests
Enter the maximum number of messaging waiting indicator (MWI) requests that are attempted at the same time so that a spike in MWI requests does not demand a large portion of Cisco Unity Connection resources.
Default setting: 0 requests.
Retries After Successful Attempt
Enter the number of times an MWI request is retried after success is reported so that MWI success is assured.
Default setting: 0 retries.
Retry Interval After Successful Attempt ____ Milliseconds
Enter the wait time, in milliseconds, between MWI retries that occur after success is reported.
Default setting: 5 milliseconds.
http://www.cisco.com/en/US/docs/voice_ip_comm/connection/7x/gui_reference/guide/7xcucgrg120.html#wp1055834
Determining the MWI Port Activity
Do the following procedure to generate a report with which you can evaluate the activity of your MWI ports.
To Determine the MWI Port Activity
Step 1 In Cisco Unity Connection Serviceability, on the Tools menu, click Reports.
Step 2 On the Serviceability Reports page, click Port Activity Report.
Step 3 On the Port Activity Report page, select the applicable options for the report.
Step 4 Click Generate Report.
http://www.cisco.com/en/US/docs/voice_ip_comm/connection/7x/troubleshooting/guide/7xcuctsg050.html#wp1054671
Cheers!
Rob
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https://supportforums.cisco.com/docs/DOC-8895
https://supportforums.cisco.com/docs/DOC-8727
