Cisco 7931G Administration Guide

1-17
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)
OL-20798-01
Chapter 1 An Overview of the Cisco Unified IP Phone
Understanding Security Features for Cisco Unified IP Phones
Table 1-6 provides information about changes to conference security levels depending on the initiator’s
phone security level, the security levels of participants, and the availability of secure conference bridges.
Table 1-6 Security Restrictions with Conference Calls
Initiator’s Phone
Security Level Feature Used
Security Level of
Participants Results of Action
Non-secure Conference Encrypted or authenticated Nonsecure conference bridge
Nonsecure conference
Secure (encrypted or
authenticated)
Conference At least one member is
non-secure
Secure conference bridge
Nonsecure conference
Secure (encrypted) Conference All participants are
encrypted
Secure conference bridge
Secure encrypted level conference
Secure (authenticated) Conference All participants are
encrypted or authenticated
Secure conference bridge
Secure authenticated level conference
Non-secure Conference Encrypted or authenticated Only secure conference bridge is available
and used
Nonsecure conference
Secure (encrypted or
authenticated)
Conference Encrypted or authenticated Only non-secure conference bridge is available
and used
Nonsecure conference
Secure (encrypted or
authenticated)
Conference Secure or encrypted Conference remains secure
When one participant tries to Hold the call with
MOH, the MOH does not play
Secure (encrypted) Join Encrypted or authenticated Secure conference bridge
Conference remains secure (encrypted or
authenticated)
Non-secure cBarge All participants are
encrypted
Secure conference bridge
Conference changes to non-secure
Non-secure MeetMe Minimum security level is
encrypted
Initiator receives message “Device Not
Authorized”, call rejected.
Secure (encrypted) MeetMe Minimum security level is
authenticated
Secure conference bridge
Conference accepts encrypted and
authenticated calls
Secure (encrypted) MeetMe Minimum security level is
non-secure
Only secure conference bridge available
and used
Conference accepts all calls

Cisco 7931G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Electromagnetic compatibility	FCC Part 15 (CFR 47) Class B, ICES-003 Class B, EN55022 Class B, CISPR22 Class B, AS/NZS CISPR 22 Class B, CISPR 24, VCCI Class B, EN55024, EN 50082-1, EN 61000-3-2, EN 61000-3-3, EN 61000-6-1
Wi-Fi	No
Networking standards	IEEE 802.1Q, IEEE 802.1af, IEEE 802.1p
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	DHCP, TFTP, CDP
Lines quantity	24 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Voice codecs	G.711a, G.729A, G.729B, G.729ab
Volume control	Digital
Display resolution	192 x 64 pixels
Display number of lines	3 lines
Display number of colors	Monochrome
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Safety	(UL) 60950, (CSA) C22.2 No. 60950, EN 60950, IEC 60950, AS/NZS60950, TS 001
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	229 mm
Width	203 mm
Height	178 mm
Weight	1360 g