Cisco 7941G Troubleshooting And Maintenance

Check TFTP Settings
Procedure
Step 1 You can determine the IP address of the TFTP server used by the phone by pressing Settings, choosing
Network Configuration > IPv4 and scrolling to the TFTP Server 1 option.
Step 2 If you have assigned a static IP address to the phone, you must manually enter a setting for the TFTP Server
1 option. See Network Configuration Menu.
Step 3 If you are using DHCP, the phone obtains the address for the TFTP server from the DHCP server. Check the
IP address configured in Option 150.
Step 4 You can also enable the phone to use an alternate TFTP server. Such a setting is particularly useful if the
phone was recently moved from one location to another. See Network Configuration Menu for instructions.
Check DHCP Settings
Procedure
Step 1 On the Cisco Unified IP Phone, choose Settings > Network Configuration > IPv4 Configuration, and look
at the following options:
• DHCP Server: If you have assigned a static IP address to the phone, you do not need to enter a value for
the DHCP Server option. However, if you are using a DHCP server, this option must have a value. If it
does not, check your IP routing and VLAN configuration. See the Troubleshooting Switch Port and
Interface Problems document, available at this URL :
http://www.cisco.com/en/US/products/hw/switches/ps708/prod_tech_notes_list.html
• IP Address, Subnet Mask, Default Router: If you have assigned a static IP address to the phone, you
must manually enter settings for these options. See Network Configuration Menu for instructions.
Step 2 If you are using DHCP, check the IP addresses distributed by your DHCP server. See the Understanding and
Troubleshooting DHCP in Catalyst Switch or Enterprise Networks document, available at this URL:
http://www.cisco.com/en/US/tech/tk648/tk361/tech_tech_notes_list.html
Verify DNS Settings
To verify DNS settings, perform these steps.
Procedure
Step 1 Verify this setting by pressing Settings.
Step 2 Choose Network Configuration and scroll to the DNS Server 1 option.
Step 3 Verify that a CNAME entry exists in the DNS server for the TFTP server and for the
Cisco Unified Communications Manager system.
Troubleshooting and Maintenance
14
Troubleshooting and Maintenance
Check TFTP Settings

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