Cisco 7821 User Manual

• When you connect a wireless headset to the phone, you can make your wireless headset the preferred
audio device.
• When you connect only an analog headset to the phone, you can make your analog headset the preferred
audio device.
Procedure
Step 1 Before you make or answer a call, press Headset.
Step 2 (Optional) If you place a call, dial the number.
Cisco IP Phone 7800 Series Multiplatform Phones User Guide
119
Accessories
Swap Headsets While on a Call

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)