Cisco 7920 Administration Guide - Page 41
Networking Protocol, Purpose, Usage Notes, Cisco IP Phone with DHCP. If - user manual
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Chapter 2 An Overview of the Wireless Network Components of the VoIP Wireless Network Table 2-1 Supported Networking Protocols on the Cisco Wireless IP Phone 7920 (continued) Networking Protocol Purpose Usage Notes Internet Protocol (IP) Messaging protocol that addresses and sends packets across the network. To communicate using IP, network devices must have an assigned IP address, subnet, and gateway. IP addresses, subnet, and gateway identifications are automatically assigned if you are using the Cisco IP Phone with DHCP. If you are not using DHCP, you must manually assign these properties to each phone locally. Real-Time Transport (RTP) Standard for transporting real-time data, such as interactive voice and video, over data networks. Cisco IP Phones use the RTP protocol to send and receive real-time voice traffic from other phones and gateways. Skinny Client Control Protocol (SCCP) Uses Cisco-proprietary messages to communicate between IP devices and Cisco CallManager. Cisco IP Phones use SCCP protocol for VoIP call signaling and enhanced features such as Message Waiting Indication (MWI). Temporal Key Integrity Protocol (TKIP) with message integrity check (MIC) Encryption and data integrity protocol that encrypts data sent over the wireless LAN. Cisco Wireless IP Phone 7920 uses TKIP/MIC algorithms to secure and preserve the integrity of voice communications. Transmission Control Connection-oriented transport Protocol (TCP) protocol. Cisco IP Phones use TCP to connect to Cisco CallManager and to access XML services. Trivial File Transfer Protocol (TFTP) Method for transfering files over the network. On the Cisco IP Phone, TFTP enables you to obtain a configuration file specific to the phone type. You must have a TFTP server in your network that the DHCP server automatically identifies. If more than one TFTP server is running in your network, you must manually assign a TFTP server to each phone. User Datagram Protocol Connectionless messaging protocol Cisco IP Phones receive and process (UDP) for delivery of data packets. UDP messages. RTP voice traffic runs over UDP. Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1 OL-7104-01 2-7