Chapter 1 An Overview of the Cisco Unified IP Phone

What Networking Protocols are Used?

Table 1-3

Supported Networking Protocols on the Cisco Unified IP Phone (continued)

 

 

 

Networking Protocol

Purpose

Usage Notes

 

 

 

Session Initiation Protocol

SIP is the Internet Engineering Task Force

Like other VoIP protocols, SIP is designed to

(SIP)

 

(IETF) standard for multimedia

address the functions of signaling and session

 

 

conferencing over IP. SIP is an

management within a packet telephony network.

 

 

ASCII-based application-layer control

Signaling allows call information to be carried

 

 

protocol (defined in RFC 3261) that can be

across network boundaries. Session management

 

 

used to establish, maintain, and terminate

provides the ability to control the attributes of an

 

 

calls between two or more endpoints.

end-to-end call.

 

 

 

You can configure the Cisco Unified IP Phone to use

 

 

 

either SIP or Skinny Client Control Protocol

 

 

 

(SCCP).

 

 

 

Skinny Client Control

SCCP includes a messaging set that allows

Cisco Unified IP Phone 6901 and 6911 use SCCP,

Protocol (SCCP)

communications between call control

version 20 for call control.

 

 

servers and endpoint clients such as IP

 

 

 

Phones. SCCP is proprietary to Cisco

 

 

 

Systems.

 

 

 

 

Transmission Control

TCP is a connection-oriented transport

Cisco Unified IP Phones use TCP to connect to

Protocol (TCP)

 

protocol.

Cisco Unified Communications Manager.

 

 

 

Transport Layer Security

TLS is a standard protocol for securing

When security is implemented, Cisco

(TLS)

 

and authenticating communications.

Unified IP Phones use the TLS protocol when

 

 

 

securely registering with Cisco

 

 

 

Unified Communications Manager.

 

 

 

For more information, refer to the Cisco Unified

 

 

 

Communications Manager Security Guide.

 

 

 

Trivial File Transfer

TFTP allows you to transfer files over the

TFTP requires a TFTP server in your network,

Protocol (TFTP)

 

network.

which can be automatically identified from the

 

 

On the Cisco Unified IP Phone, TFTP

DHCP server. If you want a phone to use a TFTP

 

 

server other than the one specified by the DHCP

 

 

enables you to obtain a configuration file

 

 

server, you must manually assign the IP address of

 

 

specific to the phone type.

 

 

the TFTP server by using the Network

 

 

 

 

 

 

Configuration menu on the phone.

 

 

 

For more information, go to the Cisco TFTP chapter

 

 

 

in the Cisco Unified Communications Manager

 

 

 

System Guide.

 

 

 

User Datagram Protocol

UDP is a connectionless messaging

Cisco Unified IP Phones transmit and receive RTP

(UDP)

 

protocol for delivery of data packets.

streams, which utilize UDP.

 

 

 

 

Related Topics

Understanding Interactions with Other Cisco Unified IP Telephony Products, page 2-1

Understanding the Phone Startup Process, page 2-6

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

1-8

OL-23874-01

 

 

Page 20
Image 20
Cisco Systems 6901 manual Communications Manager Security Guide, Cisco Unified Communications Manager, System Guide

6901 specifications

Cisco Systems 6901 is a versatile, compact, and powerful router designed to meet the networking needs of small to medium-sized businesses, as well as enterprise branch offices. This model is part of Cisco's ISR (Integrated Services Router) portfolio, which is known for its capability to integrate multiple services into a single platform, ensuring high efficiency and cost-effectiveness.

One of the main features of the Cisco 6901 is its ability to support advanced routing protocols, including RIP, EIGRP, OSPF, and BGP. This versatility allows for seamless integration into various network architectures, facilitating efficient communication and data transfer across multiple locations. The device is also built to handle high-bandwidth applications, making it an ideal choice for businesses that rely on robust network performance.

In terms of connectivity, Cisco 6901 offers multiple Ethernet ports, supporting both 10/100/1000 Mbps speeds. This ensures that users can connect a variety of devices, ranging from office computers to network printers, all while maintaining optimal network performance. Additionally, the router supports both LAN and WAN interfaces, providing flexibility in deployment options.

Security is a crucial aspect of networking, and the Cisco 6901 does not disappoint in this regard. It comes equipped with advanced security features, including firewall capabilities, intrusion prevention, and VPN support. These features ensure that sensitive business data is protected from unauthorized access, while also providing secure remote access for employees.

Another essential characteristic of the Cisco 6901 is its support for various multimedia applications. The router comes with Quality of Service (QoS) features that prioritize voice, video, and data traffic, ensuring high-quality performance for applications such as VoIP and video conferencing. This is particularly valuable in today's business landscape, where effective communication is critical for success.

The Cisco 6901 is also designed for ease of management and configuration. It features a user-friendly interface that simplifies the setup process, along with comprehensive monitoring tools that enable administrators to keep an eye on network performance and address any issues proactively.

In summary, the Cisco Systems 6901 is a powerful, feature-rich router that combines advanced routing capabilities with robust security measures and multimedia support. Its flexibility, ease of management, and comprehensive service integration make it an excellent choice for businesses seeking to enhance their networking infrastructure. With the Cisco 6901, organizations can achieve efficient communication, secure data exchange, and high-performance network operations, positioning themselves well for future growth.