In the documentation for the 6921 it cleary states that the second line will show the line text label when the phone is idle.
But in practice this information is not shown and users will not be able to see their line numer, consediring the the 1st line, top rigth corner will show the External Phone number mask.
Is this a known bug, on the 6921 firmware or a documentation bug?
Here is the screenshot of the documentation.
Screenshot obtained from here: Link:
Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 10.0 (SCCP and SIP)
Section: Cisco Unified IP Phone , Cisco Unified IP Phone 6921, Phone Screen.
Thank you for posting to the Collaboration Community. I recommend you also post this to the Cisco Support Community since this community is not staffed with technical support experts.
Cisco Support Community
Another option is to open a ticket with the Cisco Technical Assistance Center (www.cisco.com/go/support) to get expert debugging assistance.
Hope this helps.
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