|Source:||MSExchange Unified Messaging|
|Message:||An error occurred while transferring the call to the phone number “%1”. The call ID is: “%2”.|
This Warning event indicates that the Unified Messaging server did not transfer the incoming call to the telephone number that is listed in this event. This Warning event generally indicates that the Session Initiation Protocol (SIP) REFER command that is being issued by the Unified Messaging server cannot be accepted by a SIP peer (IP/VoIP gateway or IP/PBX). In some cases, the IP/VoIP gateway or IP/PBX may not be configured correctly to accept the SIP REFER command that is being sent by a Unified Messaging server. This event may be caused by one or more of the following:
For more information about UM IP/VoIP gateways, see Understanding Unified Messaging IP Gateways.
For more information about UM Test Phone, see Testing a UM Server with the UM Test Phone.
To resolve this warning, do one or more of the following: