Cisco 6821 User Manual

Call History, or your contacts. Reverse name lookup needs a valid LDAP Directory or XML Directory
configuration.
The reverse name lookup searches the phone's external directories. When a search succeeds, the name is
placed in the call session and in the call history. For simultaneous, multiple phone calls, reverse name lookup
searches for a name to match the first call number. When the second call connects or is placed on hold, reverse
name lookup searches for a name to match the second call.
Reverse name lookup is enabled by default.
Reverse name lookup searches the directories in the following order:
1. Phone contacts
2. Call History
3. LDAP Directory
4. XML Directory
Cisco IP Phone 6800 Series Multiplatform Phones User Guide
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Contacts
Reverse Name Lookup for Incoming and Outgoing Calls

Cisco 6821 Specifications

General

Resolution	320 x 240 pixels
Speakerphone	Yes
Headset Port	Yes
Protocols	SIP
USB Port	No
Wireless	No
Bluetooth	No
Video Support	No
Conference Capabilities	Yes
Wall Mountable	Yes
Display	3.5-inch grayscale
Ethernet	10/100 Ethernet
Line Keys	2
PoE	IEEE 802.3af Power over Ethernet (PoE)
Codecs	G.711, G.722, G.729, iLBC
Weight	2.0 lb (0.91 kg)