Cisco Systems 7920 manual Networking Protocol Purpose Usage Notes, Dhcp

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Chapter 1 An Overview of the Cisco Wireless IP Phone 7920

Networking Protocols Used with Cisco Wireless IP Phones

Table 1-1 Supported Networking Protocols on the Cisco Wireless IP Phone

Networking Protocol

Purpose

Usage Notes

 

 

 

Wi-Fi (802.11b)

802.11 is an open standard that

Cisco Wireless IP Phone 7920 uses

 

defines wireless methods of

the 802.11b standard with a range of

 

transmitting Ethernet traffic and is

2.4-2.497 GHz RF and dynamic rate

 

commonly called Wi-Fi. This

scaling of 1, 2, 5.5, and 11Mbps

 

standard defines for radio

speeds.

 

frequencies (RF) and data speed for

 

 

wireless LAN communications.

 

 

 

 

Cisco Discovery

CDP is a device-discovery protocol

The Cisco IP Phone uses CDP to

Protocol (CDP)

that runs on all Cisco-manufactured

communicate information such as

 

equipment.

auxiliary VLAN ID, per-port power

 

Using CDP, a device can advertise its

management details, and Quality of

 

Service (QoS) configuration

 

existence to other devices and receive

 

information with the Cisco Catalyst

 

information about other devices in

 

switch.

 

the network.

 

 

 

 

 

Dynamic Host

DHCP dynamically allocates and

DHCP is enabled by default. If

Configuration Protocol

assigns an IP address to network

disabled, you must manually

(DHCP)

devices.

configure the IP address, subnet

 

DHCP enables you to connect an

mask, gateway, and an TFTP server

 

on each phone locally.

 

IP phone into the network and have

 

 

 

the phone become operational

Cisco recommends that you use

 

without you needing to manually

DHCP custom option 150. With this

 

assign an IP address or configure

method, you configure the TFTP

 

additional network parameters.

server IP address as the option value.

 

 

For additional supported DCHP

 

 

configurations, refer to

 

 

Cisco CallManager System Guide.

 

 

 

 

Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 3.3 or Later

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Contents An Overview of the Cisco Wireless IP Phone Understanding the Cisco Wireless IP Phone Related Topics Understanding the Voice Wireless Network Overview of a Wireless LAN802.11 Standard for Wireless LAN Communications Wireless LAN with Cisco Wireless IP Phone 7920sWireless Access Points Networking Protocols Used with Cisco Wireless IP Phones SecurityNetworking Protocol Purpose Usage Notes DhcpUDP Features Supported on the Cisco Wireless IP Phone Feature OverviewConfiguring Telephony Features Related TopicProviding Users with Feature Information An Overview of the Cisco Wireless IP Phone Administration section on Required Task Purpose For More InformationAdministration Tool User Wireless Network Settings
Related manuals
Manual 5 pages 2.92 Kb Manual 54 pages 5.32 Kb Manual 48 pages 3.26 Kb

7920 specifications

Cisco Systems, a leading player in the global networking and communications technology sector, designed the Cisco 7920 Wireless IP Phone for mobile professionals seeking seamless connectivity in various environments. Primarily aimed at enhancing communication within enterprise settings, this wireless device offers a plethora of features that cater to the specific needs of businesses.

At the core of the Cisco 7920 is its robust wireless functionality. It operates on IEEE 802.11b/g wireless protocols, allowing users to connect effortlessly to Wi-Fi networks. This flexibility enables employees to communicate effectively from various locations within an office space, promoting mobility and collaboration without being tethered to a desk.

The ergonomic design of the Cisco 7920 prioritizes user comfort. Its lightweight casing and intuitive button layout ensure that users can navigate the interface with ease. The device is equipped with a vibrant color display, allowing for clear visibility of caller ID, call status, and menu options, enhancing the user experience further. Additionally, the handset supports a wide variety of languages, making it suitable for global teams.

In terms of features, the Cisco 7920 is loaded with advanced capabilities. It supports voice over IP (VoIP), delivering high-quality audio and ensuring reliable communication. Users benefit from features like a contextual menu, call hold, transfer, conference calling, and voicemail access on the go. The phone also offers a wide range of ringtones, allowing customization to suit personal preferences or company branding.

Security is a crucial aspect of modern telecommunications, and the Cisco 7920 does not fall short. It incorporates industry-standard security protocols such as Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA), safeguarding communications from potential threats.

Moreover, the Cisco 7920 integrates seamlessly with Cisco Unified Communications Manager, enabling centralized management and control. This integration ensures that IT departments can deploy, manage, and troubleshoot devices efficiently, streamlining operations while ensuring optimal performance.

In conclusion, the Cisco 7920 Wireless IP Phone stands out as a versatile communication tool designed for the fast-paced workplace. Its combination of wireless connectivity, ergonomic design, advanced features, and robust security makes it an essential accessory for businesses looking to elevate their communication strategies. With its established reputation, Cisco continues to support companies in achieving seamless connectivity and effective collaboration.