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64-9
Cisco Unified Communications Manager Administration Guide
OL-18611-01
Chapter 64 Directory Number Configuration
Directory Number Configuration Settings
Forward All The settings in this row of fields specify the forwarding treatment for calls to this directory
number if the directory number is set to forward all calls. The Calling Search Space field gets
used to validate the Forward All destination that is entered when the user activates Call
Forward All from the phone. This field also gets used to redirect the call to the Call Forward
All destination.
Specify the following values:
• Voice Mail—Check this check box to use settings in the Voice Mail Profile Configuration
window.
Note When this check box is checked, Cisco Unified Communications Manager ignores the
settings in the Destination box and Calling Search Space.
• Destination—This setting indicates the directory number to which all calls are forwarded.
Use any dialable phone number, including an outside destination.
• Calling Search Space—This setting applies to all devices that are using this directory
number.
Secondary Calling Search
Space for Forward All
Because call forwarding is a line-based feature, in cases where the device calling search space
is unknown, the system uses only the line calling search space to forward the call. If the line
calling search space is restrictive and not routable, the forward attempt fails.
Addition of a secondary calling search space for Call Forward All provides a solution to
enable forwarding. The primary calling search space for Call Forward All and secondary
calling search space for Call Forward All get concatenated (Primary CFA CSS + Secondary
CFA CSS). Cisco Unified Communications Manager uses this combination to validate the
CFA destination and to forward the call.
See the description for the field, Calling Search Space, page 64-5, for information about how
the combination of Primary and Secondary CFA CSSs works
Table 64-1 Directory Number Configuration Settings (continued)
Field Description