Solution : https://service.sap.com/sap/support/notes/544847 (SAP Service marketplace login required)
Key words : 
multichannel interface message file agent dashboard previously, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~       multichannel interface patch   ~~        ~~  version release date, conference call/warm transfer bug, \program files\sap\mcis\server, build 49 registered rfc server connections, e-mail connector installations apply, creating additional delays related, sap remains practically constant, conference/warm transfer presses, sap crm > sap crm 3
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