Cisco CP-7942G Administration Guide - Page 18
What Networking Protocols are Used - manual
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What Networking Protocols are Used? Chapter 1 An Overview of the Cisco Unified IP Phone 14 Keypad 15 Softkey buttons Allows you to dial phone numbers, enter letters, and choose menu items. Each activates a softkey option (displayed on your phone screen). 16 Handset light strip Indicates an incoming call or new voice message. What Networking Protocols are Used? Cisco Unified IP Phones support several industry-standard and Cisco networking protocols required for voice communication. Table 1-1 provides an overview of the networking protocols that the Cisco Unified IP Phone 7962G and 7942G support. Table 1-1 Supported Networking Protocols on the Cisco Unified IP Phone Networking Protocol Bootstrap Protocol (BootP) Cisco Discovery Protocol (CDP) Dynamic Host Configuration Protocol (DHCP) Hypertext Transfer Protocol (HTTP) Purpose Usage Notes BootP enables a network device such as the Cisco Unified IP Phone to discover certain startup information, such as its IP address. If you are using BootP to assign IP addresses to the Cisco Unified IP Phone, the BOOTP Server option shows "Yes" in the network configuration settings on the phone. CDP is a device-discovery protocol that runs on all Cisco-manufactured equipment. Using CDP, a device can advertise its existence to other devices and receive information about other devices in the network. The Cisco Unified IP Phone uses CDP to communicate information such as auxiliary VLAN ID, per port power management details, and Quality of Service (QoS) configuration information with the Cisco Catalyst switch. DHCP dynamically allocates and assigns an IP address to network devices. DHCP enables you to connect an IP phone into the network and have the phone become operational without your needing to manually assign an IP address or to configure additional network parameters. DHCP is enabled by default. If disabled, you must manually configure the IP address, subnet mask, gateway, and a TFTP server on each phone locally. Cisco recommends that you use DHCP custom option 150. With this method, you configure the TFTP server IP address as the option value. For additional supported DHCP configurations, refer to Cisco Unified Communications Manager System Guide. HTTP is the standard way of transferring Cisco Unified IP Phones use HTTP for the XML information and moving documents across services and for troubleshooting purposes. the Internet and the web. Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 7.0 1-4 OL-15483-01