Cisco 7821 Administration Guide

Inventory Settings
DescriptionParameter
Provides the ability to enter an asset ID for inventory
management when using LLDP-MED. The default
value for Asset ID is empty. Enter a string of less than
32 characters if you are using this field.
The Asset ID can be provisioned only by using the
web management interface or remote provisioning.
The Asset ID is not displayed on the phone screen.
Changing the Asset ID field causes the phone to
reboot.
Asset ID
SIP
SIP Parameters
DescriptionParameter
SIP Max Forward value, which can range from 1 to
255.
Default: 70
Max Forward
Number of times an invite can be redirected to avoid
an infinite loop.
Default: 5
Max Redirection
Maximum number of times (from 0 to 255) a request
can be challenged.
Default: 2
Max Auth
Used in outbound REGISTER requests.
Default: $VERSION
If empty, the header is not included. Macro expansion
of $A to $D corresponding to GPP_A to GPP_D
allowed
SIP User Agent Name
Server header used in responses to inbound responses.
Default: $VERSION
SIP Server Name
User-Agent name to be used in a REGISTER request.
If this is not specified, the SIP User Agent Name is
also used for the REGISTER request.
Default: Blank
SIP Reg User Agent Name
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
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Cisco IP Phone Troubleshooting
Inventory Settings

Cisco 7821 Specifications

General

Resolution	396 x 162 pixels
Lines	2
Speakerphone	Yes
Display	3.5-inch (89 mm) monochrome display
Ethernet Ports	2 x 10/100 Ethernet ports
Power	IEEE PoE Class 1
Headset Port	Yes
Protocols	SIP
Audio Codecs	G.711, G.722, G.729, iLBC
Weight	0.9 kg (1.98 lb)