Cisco 7970G - IP Phone VoIP 문제 해결 및 유지 관리 - 페이지 21
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Troubleshooting and Maintenance
• Call histories: Erased
• Locale information: Reset to default values
• Phone application: Erased (phone recovers by loading the appropriate default load file, which depends
Before you perform a factory reset, ensure that the following conditions are met:
• The phone must be on a DHCP-enabled network.
• A valid TFTP server must be set in DHCP option 150 or option 66 on the DHCP server.
• The default load file for your phone model and the files specified in that file should be available on the
To perform a factory reset of a phone, follow these steps:
Procedure
Step 1
Unplug the power cable from the phone and then plug it back in.
The phone begins the power-up cycle.
Step 2
While the phone is powering up, and before the Speaker button flashes on and off, press and hold #.
Continue to hold # until each line button flashes on and off in sequence in orange (for the Cisco Unified IP
Phone 7975G, 7971G-GE and 7970G) or amber (for the Cisco Unified IP Phone 7965G and 7945G).
Step 3
Release # and press 123456789*0#.
You can press a key twice in a row, but if you press the keys out of sequence, the factory reset does not take
place.
After you press these keys, the line buttons on the phone flash orange and then green (for the Cisco Unified
IP Phone 7975G, 7971G-GE and 7970G) or red (for the Cisco Unified IP Phone 7965G and 7945G), and the
phone goes through the factory reset process. This process can take several minutes.
Do not power down the phone until it completes the factory reset process, and the main screen displays.
Additional Troubleshooting Information
If you have additional questions about troubleshooting the Cisco Unified IP Phones, these Cisco.com websites
provide you with more tips.
• Cisco Unified IP Phone Troubleshooting Resources:
• Cisco Products and Services (Technical Support and Documentation):
on the phone model term75.default.loads, term71.default.loads, term70.default.loads, term65.default.loads,
or term45.default.loads)
TFTP server that is specified by the DHCP packet.
http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_series_home.html
http://www.cisco.com/en/US/products/sw/voicesw/tsd_products_support_category_home.html
Additional Troubleshooting Information
Troubleshooting and Maintenance
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