Cisco 7975G Software Guide

Note
•
When you remove a phone from the Cisco Unified Communications Manager database, the
configuration file is deleted from the Cisco Unified Communications Manager TFTP server. The
phone directory number or numbers remain in the Cisco Unified Communications Manager database.
They are called “unassigned DNs” and can be used for other devices. If unassigned DNs are not used
by other devices, delete them from the Cisco Unified Communications Manager database. You can
use the Route Plan Report to view and delete unassigned reference numbers. See the
Cisco Unified Communications Manager Administration Guide for more information.
•
Changing the buttons on a phone button template, or assigning a different phone button template to
a phone, may result in directory numbers that are no longer accessible from the phone. The directory
numbers are still assigned to the phone in the Cisco Unified Communications Manager database,
but the phone has no button with which calls can be answered. These directory numbers should be
removed from the phone and deleted if necessary.
To create a new configuration file, follow these steps:
Procedure
Step 1
From Cisco Unified Communications Manager, choose Device > Phone > Find to locate the phone
experiencing problems.
Step 2
Choose Delete to remove the phone from the Cisco Unified Communications Manager database.
Step 3
Add the phone back to the Cisco Unified Communications Manager database. See Cisco Unified
Communications Manager Phone Addition Methods, on page 37 for details.
Step 4
Power cycle the phone.
Start Service
A service must be activated before it can be started or stopped. To activate a service, choose Tools >
Service Activation.
Note
To start a service, follow these steps:
Procedure
Step 1
From Cisco Unified Communications Manager Administration, choose Cisco Unified Serviceability from
the Navigation drop-down list and click Go.
Step 2
Choose Tools > Control Center - Feature Services.
Step 3
Choose the primary Cisco Unified Communications Manager server from the Server drop-down list.
The window displays the service names for the server that you chose, the status of the services, and a service
control panel to start or stop a service.
Step 4
If a service has stopped, click the corresponding radio button and then click Start.
Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G Administration Guide for Cisco Unified
Communications Manager 9.0 (SCCP and SIP)
230
Troubleshooting and Maintenance
Troubleshooting Procedures

Cisco 7975G Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Grey, Silver
Speakerphone	Yes
Voice codecs	G.711Mu, G.711a, G.722, G.729A, iLBC
Number of melodies	24
Aspect ratio	4:3
Display diagonal	5.6 \
Display resolution	320 x 240 pixels
Lines quantity	8 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Front camera	No
Security algorithms	128-bit AES
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	DHCP, TFTP
Volume control	Digital
Headphone outputs	1
Ethernet LAN (RJ-45) ports	2
Number of handles included	1 pc(s)
AC adapter output voltage	48 V
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Certification	FCC

Weight and Dimensions

Depth	152.4 mm
Width	266.7 mm
Height	203.2 mm
Weight	1600 g