Cisco 7941G Troubleshooting And Maintenance

Cause
A bad TFTP record exists, or the configuration file may not be signed by the corresponding certificate in the
phone Trust List.
Solution
Check the TFTP record and the certificate in the Trust List.
ITL File Authenticates but Other Configuration Files Do Not Authenticate
Problem
Phone cannot authenticate any configuration files other than the ITL file.
Cause
The configuration file may not be signed by the corresponding certificate in the phone Trust List.
Solution
Re-sign the configuration file by using the correct certificate.
Phone Does Not Register
Problem
Phone does not register with Cisco Unified Communications Manager.
Cause
The CTL file does not contain the correct information for the Cisco Unified Communications Manager server.
Solution
Change the Cisco Unified Communications Manager server information in the CTL file.
Signed Configuration Files Are Not Requested
Problem
Phone does not request signed configuration files.
Cause
The CTL file does not contain any TFTP entries with certificates.
Solution
Configure TFTP entries with certificates in the CTL file.
802.1X Authentication Problems
802.1X authentication problems can be broken down into the categories described in the following table:
Troubleshooting and Maintenance
9
Troubleshooting and Maintenance
ITL File Authenticates but Other Configuration Files Do Not Authenticate

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