Cisco 7920 - Unified Wireless IP Phone VoIP, Руководство администратора

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Chapter 2 An Overview of the Wireless Network
Understanding the Phone Startup Process
2-22
Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1
OL-7104-01
Table 2-5 Cisco IP Phone Startup Process
Step Description Related Topics
1.
Powering on the
phone The Cisco Wireless IP Phone 7920 has
non-volatile Flash memory in which it stores
firmware images and user-defined preferences.
At startup, the phone runs a bootstrap loader that
loads a phone image stored in Flash memory.
Using this image, the phone initializes its
software and hardware. Providing Power to the
Cisco IP Phone, page 3-17
Resolving Startup and
Connectivity Problems,
page 9-2
2.
Scanning for an
access point The Cisco Wireless IP Phone 7920 scans the RF
coverage area with its radio. The phone scans its
network profiles and searches for access points
that have a matching SSID and authentication
type. The phone associates with the access point
with the highest RSSI and lowest channel
utilization (QBSS) that matches with its
network profile. Interacting with the Cisco
Aironet Access Point,
page 2-8
Resolving Startup and
Connectivity Problems,
page 9-2