10/4/2023 0 Comments Zoiper android mwi![]() If the server list on CUC is not in accordance with the CCM group defined on the trunk then CUCM will send out a 503 service unavailable in response to the Notify from CUC. It should be in accordance with the CM group assigned to the device pool associated with the SIP trunk/Voice Mail ports. Telephony integration > Port group > Edit > Servers Make sure that the order of CUCM servers is correct in port group on CUC. If you are having a CUC PUB/SUB setup, then make sure you have ports created for SUB as well on CUC.ĥ. Choose Telephony Integrations > Ports in Cisco Unity Connection Administration page and Confirm that there are voice−messaging ports for the phone system integration that are assigned to send MWI requests.Ĥ. On CUC port group, make sure that the port group has check “register with SIP server” and “Enable message waiting indicator”.ģ. Check Telephony: Cisco Unity Connection Administration, in the Related Links list in the upper right corner of any Telephony Integrations page, click Check Telephony Configuration and click Go.Ģ. > VM port sends out a stationinit message with the MWI notification: ![]() > Conversation manager on CUC initiates the SIP stack to send out a SIP notify to CUCM:įrom: sip:10.106.117.132 tag=185be2450fa4498f9ad928a998f4cc11 When the subscriber listens to the message, Cisco Unity connection notifies the phone system to deactivate the MWI on the phone ![]() Since the NotifyQ is actively being monitored by connection notifier service it instructs the Conversation manager to notify the phone system about the new message by sending a SIP NOTIFY message with Request URI header of user’s CUC extension & a skinny notification in case of Skinny integration.Ħ. In case of new message, the NotifyQ gets filled. It then compares that with what state we currently think the light is in and, if it needs to change, queues the task.ĥ. When an event is placed in it, connection Notifier will check the user's mailbox to determine whether their MWI should be on or off. Connection Notifier's main function is to keep a check on the NotifyQ. NotifyQ is informed about the new message.Ĥ. When the call reaches CUC and user has to leave a voice mail, conversation manager answers the call. Call comes to IP phone and since user does not answer/busy, it goes to Voice mail.Ģ. When a caller leaves a message for a subscriber, Cisco Unity connection notifies the phone system to activate the MWI on the subscriber's phone which is done by turning on the red light of the phone along with a blinking message icon on the Phone.ġ. MWI stands for message waiting indicator. This document is to help you understand the concept of MWI when CUC is integrated with CUCM with the help of process diagram and sample traces.
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