Cisco 7941G Troubleshooting And Maintenance

ExplanationSummary
If the Peer Firmware Sharing fails, the phone will
default to using the TFTP server to download
firmware. Access the log messages stored on the
remote logging machine to help debug the Peer
Firmware Sharing feature.
These log messages are different from the
log messages sent to the phone log.
Note
Peer Firmware Sharing fails.
If you are having problems getting CVTA to work,
make sure that the PC Port is enabled, and that CDP
is enabled on the PC port.
See Network Configuration Menu for more
information.
Cisco VT Advantage/Unified Video Advantage
(CVTA)
The phone does not have a DHCP IP address, is
unable to register to Cisco Unified Communications
Manager, and shows a Configuring IP or Registering
message.
Verify the following:
1. The Ethernet cable is attached.
2. The Cisco CallManager service is running on the
Cisco Unified Communications Manager server.
3. Both phones are registered to the same Cisco
Unified Communications Manager.
4. Audio server debug and capture logs are enabled
for both phones. If needed, enable Java debug.
Phone call cannot be established
Troubleshooting and Maintenance
19
Troubleshooting and Maintenance
General Troubleshooting Information

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