Cisco 7941G Administration Guide

To ChangeDescriptionOption
From Cisco Unified
Communications Manager
Administration, choose Device >
Phone > Phone Configuration.
The Peer Firmware Sharing feature
provides these advantages in high speed
campus LAN settings:
•
Limits congestion on TFTP transfers
to centralized remote TFTP servers
•
Eliminates the need to manually
control firmware upgrades
•
Reduces phone downtime during
upgrades when large numbers of
devices are reset simultaneously
Peer Firmware Sharing may also aid in
firmware upgrades in branch/remote office
deployment scenarios over
bandwidth-limited WAN links.
When enabled, it allows the phone to
discover similar phones on the subnet that
are requesting the files that make up the
firmware image, and to automatically
assemble transfer hierarchies on a per-file
basis. The individual files making up the
firmware image are retrieved from the
TFTP server by only the root phone in the
hierarchy, and are then rapidly transferred
down the transfer hierarchy to the other
phones on the subnet using TCP
connections.
This menu option indicates whether the
phone supports peer firmware sharing.
Settings include:
• Enabled—default
•
Disabled
Peer Firmware Sharing
From Cisco Unified
Communications Manager
Administration, choose Device >
Phone > Phone Configuration.
Indicates the IP address and port of the
remote logging machine to which the
phone sends log messages. These log
messages help in debugging the Peer
Firmware Sharing feature.
The remote logging setting does
not affect the sharing log
messages sent to the phone log.
Note
Log Server
Cisco Unified IP Phone 7941G, 7941G-GE, 7942G, 7961G, 7961G-GE, and 7962G Administration Guide for Cisco
Unified Communications Manager 9.0 (SCCP and SIP)
104
Cisco Unified IP Phone Settings
Network Configuration Menu

Cisco 7941G Specifications

General

Keypad number of keys	12
Touchscreen	-
Display resolution	320 x 222 pixels
Speakerphone	Yes
Voice codecs	G.729a
Bluetooth	No
Supported network protocols	DHCP, TFTP, SCCP, DSCP
Ethernet LAN (RJ-45) ports	2
Input voltage	48 V
Dimensions (WxDxH)	266.7 x 152.4 x 203.2 mm
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Safety	(UL) 60950, (CSA) C22.2 No. 60950, IEC 60950, EN 60950, AS/NZS 60950
Certification	CE (FCC) 15 (CFR 47) B ICES-003 B EN55022 B CISPR22 B AS/NZ 3548 B VCCI B EN55024 EN 50082-1 EN 61000-3-2 EN 61000-3-3
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1Q, IEEE 802.3af
Lines quantity	- lines
Phonebook capacity	- entries
Number of handles included	1 pc(s)

Weight and Dimensions

Weight	1600 g