Phone Startup Overview - Cisco 8811 Administration Manual

• Initial password for accessing the voice messaging system.
• How the phone indicates that voice messages are waiting.

Phone Startup Overview

When connecting to the VoIP network, the Cisco IP Phones goes through a standard startup process. Depending
on your specific network configuration, only some of these steps may occur on your Cisco IP Phone.
1 Obtain power from the switch. If a phone is not using external power, the switch provides inline power
through the Ethernet cable that is attached to the phone.
2 (For the Cisco IP Phone 8861 and 8865 in a wireless LAN only) Scan for an access point. The Cisco IP
Phone 8861 and 8865 scans the RF coverage area with the radio. The phone searches the network profiles
and scans for access points that contain a matching SSID and authentication type. The phone associates
with the access point with the highest RSSI that matches with the network profile.
3 (For the Cisco IP Phone 8861 and 8865 in a wireless LAN only) Authenticate with the access point. The
Cisco IP Phone begins the authentication process. The following table describes the authentication process:
4 Load the stored phone image. At startup, the phone runs a bootstrap loader that loads a phone firmware
image that is stored in flash memory. Using this image, the phone initializes the software and hardware.
5 Configure the VLAN. If the Cisco IP Phone is connected to a Cisco Catalyst switch, the switch next
informs the phone of the voice VLAN that is defined on the switch. The phone needs to know the VLAN
membership before it can proceed with the Dynamic Host Configuration Protocol (DHCP) request for an
IP address.
6 Obtain an IP address. If the Cisco IP Phone is using DHCP to obtain an IP address, the phone queries the
DHCP server to obtain one. If you are not using DHCP in your network, you must assign static IP addresses
to each phone locally.
Make sure that you have configured a default voice messaging system password for all users.
Make sure that you have used Cisco Unified Communications Manager to set up a message waiting
indicator (MWI) method.
Authentication type Key management options
Open None
Shared Key None
PEAP or EAP-FAST None
Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager
Phone Startup Overview
Description
Any device can authenticate to the access point.
For added security, static WEP encryption might
optionally be used.
The phone encrypts the challenge text by using
the WEP key and the access point must verify the
WEP key that was used to encrypt the challenge
text before network access is available.
The RADIUS server authenticates the username
and password before network access is available.
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