Chapter 1
Overview of the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
3.
Note
Related Topics
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Security Restrictions
When using a phone that is not configured for encryption, the user cannot barge into an encrypted call.
When barge fails in this case, a reorder (fast busy) tone plays on the barge initiator phone.
If the phone is configured for encryption, the user can barge into an authenticated or non-secure call from
the encrypted phone. After the barge occurs, Cisco Unified Communications Manager classifies the call
as non-secure.
If the phone is configured for encryption, the user can barge into an encrypted call, and the phone
indicates that the call is encrypted.
A user can barge into an authenticated call, even if the phone that is used to barge is non-secure. The
authentication icon continues to display on the authenticated phones in the call, even if the initiator's
phone does not support security.
Overview of Configuring and Installing the Cisco Unified
Wireless IP Phone 7925G, 7925G-EX, and 7926G
When deploying a new IP telephony system, system administrators and network administrators must
complete several tasks to prepare the network for IP telephony service. For information and a checklist
for setting up and configuring a complete Cisco IP telephony network, see the "System Configuration
Overview" chapter in the Cisco Unified Communications Manager System Guide.
After you have set up the IP telephony system and configured system-wide features in Cisco Unified
Communications Manager Administration, you can add IP phones to the system. To add
wireless IP phones to the IP network, system administrators should conduct a site survey to determine
strategic locations for access points (APs) to ensure good wireless voice coverage. For detailed
information about a voice over WLAN deployment, see the
Note
The following topics provide an overview of procedures for adding Cisco Unified IP Phones to your
network:
Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
A security tone plays if the call is connected to another protected phone, indicating that both ends
of the conversation are encrypted and protected. If the call is connected to a non-protected phone,
then the secure tone does not play.
Protected calling is supported for conversations between two phones. Some features, such as
conference calls, shared lines, Extension Mobility, and Join Across Lines, are not available when
protected calling is configured.
Understanding Security Features for Cisco Unified IP Phones, page 1-10
Understanding Security Profiles, page 1-13
Security Restrictions, page 1-15
The Cisco Unified Wireless IP Phone 7926G must be running firmware version 1.4(1) or later.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide
Cisco Enterprise Mobility 4.1 Design
Guide.
1-15
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