Configuration Guide – DOC. 7991A CCS-UC-1: Secure SIP Endpoint with Cisco UCM 11.0
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• DTMF support
• Early media support
• Retrieval of a parked call
• Transferee in a call transfer
• Conference participant
• Member of hunt group
• Caller ID presentation with name and number display
• Call hold and resume
• Call forwarding on the device (Forwarding can be configured on the PBX for the DN
assigned to the endpoint.)
• Call waiting
• Conference
• Initiating attended call transfer
• Initiating semi-attended call transfer
• Initiating blind call transfer
• Configuration of shared line on device
• Initiating call park
• Do Not Disturb (DND)
Known Issues and Limitations
• Caller ID is not supported on the device. Currently only the calling party number is
displayed as the caller ID. This issue is tracked via Crestron’s Bugzilla™ software,
Defect: 119006.
• The active call timer on the device does not reflect the correct call duration. The
active call duration includes the time for which the unit was being alerted also. This
issue is tracked via Crestron’s Bugzilla software Defect: 124001.
• The first ringback heard on the device is stuttered – resembles a mix of local and
remote ringback. This issue is tracked via Crestron’s Bugzilla software Defect:
122421.
• On the Crestron Mercury web user interface, there is currently no notification
provided to the user when certain mandatory configurations are missing. This issue
is tracked via Crestron’s Bugzilla software Defect: 125193.
• On the Crestron Mercury web user interface, a configuration of DHCP OFF on the
Network configuration page mandates configuration of both the adapters. The user
is unable to save changes unless both the adapters are configured and is notified of
an invalid IP against the default of 0.0.0.0 for an unused adapter. This issue is
tracked via Crestron’s Bugzilla software Defect: 126236.