Cisco 9971 Administration Guide

CHAPTER 1
Technical Details
•
Physical and Operating Environment Specifications, page 3
•
Cable Specifications, page 4
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Phone Power Requirements, page 6
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Network Protocols, page 9
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VLAN Interaction, page 13
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Cisco Unified Communications Manager Interaction, page 14
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Cisco Unified Communications Manager Express Interaction, page 14
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Voice Messaging System Interaction, page 15
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Phone Startup Overview, page 15
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External Devices, page 17
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USB Port Information, page 18
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Phone Configuration Files, page 18
•
Network Bandwidth, page 19
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Phone Behavior During Times of Network Congestion, page 19
Physical and Operating Environment Specifications
The following table shows the physical and operating environment specifications for the Cisco Unified IP
Phone 8961, 9951, and 9971.
Table 1: Physical and Operating Specifications
Value or rangeSpecification
32° to 104°F (0° to 40°C)Operating temperature
10% to 95% (noncondensing)Operating relative humidity
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 10.0
3

Cisco 9971 Specifications

General

Resolution	640 x 480 pixels
Programmable Line Keys	5
Protocols	SIP, SCCP
Wi-Fi	802.11a/b/g
Weight	3.5 lbs
Display	5-inch color LCD
Audio	Wideband audio, G.722 codec support
USB Ports	2 x USB 2.0
Ethernet Ports	2
PoE	Yes (802.3af)
Video	H.264
Network Interfaces	10/100/1000 Ethernet
Codecs	G.711, G.722, G.729a, G.729ab, iLBC
Power Options	PoE
Headset Port	Dedicated headset port
Speakerphone	Full-duplex speakerphone