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Cisco Unified Communications Manager Configuration Guide for the Cisco TelePresence System
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Chapter 3 Verifying and Troubleshooting the Cisco TelePresence System Configuration
Managing Phone Reset and Codec Connectivity
Step 5
Click OK.
Resetting the Cisco Unified IP Phone 7970 Series Factory Image
To reset the phone to the factory image, follow these steps:
Step 1
Disconnect the power from the phone.
Step 2
While holding down the “#” key, reconnect the power.
Step 3
As soon as you see the line button lights to the right side of the display cycling yellow, release the “#”
key.
Step 4
Press the following buttons in sequence: 3, 4, 9, 1, 6, 7, 2, 8, 5, 0, *, #.
The cycling line button lights then change from yellow to red. Within a few minutes the phone will begin
booting.
Restoring Connectivity to the Codec
If you lose connectivity to the CTS codec(s), follow these steps:
Step 1
Power off the system by turning the following power switches to the Off position:
•
Two left PDUs.
•
Single right PDU.
•
The PDU or auxiliary control unit behind the center display assembly (if present).
Step 2
Power on the system by turning the following power switches to the On position:
•
Two left PDUs.
•
Single right PDU.
•
The PDU or auxiliary control unit behind the center display assembly (if present).
Tip
Power on the primary codec before powering on the secondary codecs to prevent the secondary
codecs from being affected by any software and peripheral upgrades to the primary codec.
Connectivity should automatically be restored.
For more information about the CTS codec, refer to the Cisco TelePresence System Assembly, Use &
Care, and Field-Replaceable Unit Guide for your system on Cisco.com:
Support
> Products > TelePresence > Cisco TelePresence System
