Cisco 7821 Firmware Migration Master Guide

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Q: My customer purchased the wrong phone type and just need to migrate the
phone to the call control they have. Can we do this?
A: No. Please work with customer service to get the phones returned and the proper phones sent to the customer. The BU will not replace
phones or migrate phones for customers that make a mistake when ordering our phones.

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)