Cisco 7941G Administration Guide

Cisco Unified Communications Manager Settings On Phone
Problem
The phone may have the correct Cisco Unified Communications Manager information.
Solution
On the Cisco Unified IP Phone, press the Settings button, choose Device Configuration, and look at the
Unified CM Configuration options. The Cisco Unified IP Phone attempts to open a TCP connection to all
the Cisco Unified Communications Manager servers that are part of the assigned Cisco Unified Communications
Manager group. If none of these options contain IP addresses or show Active or Standby, the phone is not
properly registered with Cisco Unified Communications Manager. See Phone Cannot Connect to TFTP Server
or to Cisco Unified Communications Manager, on page 211 for tips on resolving this problem.
Cisco CallManager and TFTP Services Are Not Running
Problem
If the Cisco CallManager or TFTP services are not running, phones may not be able to start up properly. In
such a situation, it is likely that you are experiencing a systemwide failure, and other phones and devices are
unable to start up properly.
Solution
If the Cisco CallManager service is not running, all devices on the network that rely on it to make phone calls
are affected. If the TFTP service is not running, many devices cannot start up successfully. For more
information, see Start Service, on page 224.
Configuration File Corruption
Problem
If you continue to have problems with a particular phone that other suggestions in this chapter do not resolve,
the configuration file may be corrupted.
Solution
Create a new phone configuration file. See Create New Phone Configuration File, on page 224.
Cisco Unified Communications Manager Phone Registration
Problem
The phone is not registered with the Cisco Unified Communications Manager
Solution
A Cisco Unified IP Phone can register with a Cisco Unified Communications Manager server only if the
phone has been added to the server or if auto-registration is enabled. Review the information and procedures
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)
212
Troubleshooting and Maintenance
Startup Problems

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