Startup Settings For A Network Without Dhcp - Cisco 7920 - Unified Wireless IP Phone VoIP Administration Manual

Chapter 3 Setting Up Cisco Wireless IP Phones

Startup Settings for a Network Without DHCP

Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1
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Active mode—The phone is in active mode when the phone is performing one of
the following actions:
Connected to an active call
•
Scanning for channels
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Sending CDP packets
•
Sending keep-alive messages
•
Reregistering with Cisco CallManager
•
As long as there is an active RTP stream, the phone remains in active mode and
consumes power. The standard battery provides up to 3 hours of talk time in active
mode and the extended battery provides up to 4.25 hours of talk time.
Standby mode—The phone goes into standby mode two seconds after a scan is
complete. The standard battery provides up to 21 hours of standby time and the
extended battery provides up to 30 hours of standby time.
The phone will awake from standby mode in response to these events:
Key pad activity
•
Roaming
•
Power cycling the phone
•
Losing network connectivity
•
Losing RF connectivity
•
Transmitting scheduled CDP or keep-alive packets.
•
Related Topics
Startup Settings for a Network Without DHCP, page 3-25
•
Resolving Startup and Connectivity Problems, page 9-2
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If you are not using DHCP in your network, you must configure these network
settings on the Cisco Wireless IP Phone 7920:
IP address
•
Subnet mask
•
Primary TFTP server IP address
•
Installing the Cisco Wireless IP Phone 7920
3-25