Manual

Chapter 3 Setting Up the Cisco Unified Wireless IP Phone 7921G

Before You Begin

3-2

Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0

OL-10802-02

Voice-over-Wireless Network (VoWLAN)

• Cisco Aironet Access Points configured to support Voice over WLAN

(VoWLAN)

• Controllers and switches configured to support VoWLAN

• Security implemented for authenticating wireless voice devices and users

Note You must verify that your wireless network is configured properly for voice

service. For more information, see the “Performing a Site Survey Verification”

section on page 2-31

Voice-over-IP (VoIP) Network

• Cisco routers and gateways configured for Voice over IP (VoIP)

• One of these call control products installed and configured:

–

Cisco Unified CallManager Release 4.1, 4.2 or 5.0 and later

–

Cisco Unified CallManager Express 4.1 or later

• IP network configured to support DHCP or manual assignment of IP address,

gateway, and subnet mask