Server Administration

You can disable the Network Audio Quality data and assessment display for all sets by setting

the system value NTWKAUDIO to a value of “0.AdministeringOptions for the 4600 Series IP Telephones on page 80 explains how to do so.

This information’s implication for LAN administration depends, of course, on the values the user reports and the specific nature of your LAN, like topology, loading, QoS administration, etc. This information’s major use is to give the user an idea of how network conditions affect the current call’s audio quality. It is assumed you have more detailed tools available for troubleshooting the LAN.

RSVP and RTCP

Avaya IP Telephones implement the Resource ReSerVation Protocol (RSVP) to support WAN bandwidth management. RSVP is administered from the media server. Avaya IP Telephones implement the RTP Control Protocol (RTCP) so Avaya’s Voice over IP (VoIP) Monitoring Manager (VMON) software can provide real-time monitoring and historical data of audio quality for VoIP calls.

Resource ReSerVation Protocol (RSVP) is an IETF-standard protocol hosts use to request resource reservations throughout a network. RSVP-compliant hosts send messages through a network to receivers. Receivers respond with messages requesting a type of service and an amount of resources, for example, bandwidth, to carry out that service. The host is responsible for admitting (approving) or rejecting (denying) the request. In a QoS context, RSVP tries to reserve bandwidth on the network for voice calls on a call-by-call basis. If insufficient bandwidth is available for the target voice quality, a request to use network bandwidth for a voice call is rejected.

RTP Control Protocol (RTCP), as its name implies, is a protocol that provides control functions for Real-time Transport Protocol (RTP). RTP provides end-to-end network services for real-time data such as Voice over IP. But RTP does not provide a reservation function, nor does it guarantee any level of QoS. RTCP supplements RTP by monitoring the quality of the RTP services and can provide real-time information to users of an RTP service. In a QoS context, RTCP is valuable to identify information such as:

packet loss,

1-way delay or how long a packet has to go from source A to destination B,

jitter, etc.

RTCP itself does not improve QoS, but provides information to help identify where problem areas might be.

You cannot change the telephone’s RSVP or RTCP parameters directly on the telephone or by TFTP or DHCP administration. The only way to change these parameters is by appropriate switch administration. See your Avaya media server administration material for more detail.

78 4600 Series IP Telephone Release 2.2 LAN Administrator Guide

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Avaya 4600 manual Rsvp and Rtcp

4600 specifications

The Avaya 4600 series is a line of IP telephones designed for enterprise communication. Known for its robust features and reliability, the 4600 series has been widely adopted in various business environments, from small companies to large corporations.

One of the standout features of the Avaya 4600 series is its support for Voice over Internet Protocol (VoIP). This enables businesses to make voice calls over the internet, which can significantly reduce telecommunications costs. The integration of VoIP technology also allows for seamless communication across different locations, making it ideal for businesses with multiple branches or remote employees.

The design of the Avaya 4600 series phones is user-friendly, featuring a clear display and an intuitive interface. Users can easily navigate through various options, making calls, accessing voicemail, and managing contacts a straightforward task. Many models in the series include customizable soft keys, which allow individuals to tailor the phone's functions to their specific needs. This flexibility is crucial in environments where employees need to quickly adjust their communications settings.

Another key characteristic is the high-quality audio. The Avaya 4600 series incorporates advanced audio technologies that ensure clear and crisp sound quality during calls. This is essential for effective communication, particularly in large meetings or conference calls where clarity is vital.

The Avaya 4600 series also supports various network protocols, including Session Initiation Protocol (SIP), providing compatibility with a wide range of network infrastructures and allowing organizations to choose the system that best fits their needs. This versatility makes the 4600 series an appealing choice for businesses looking to future-proof their communication systems.

Security is a major consideration in any enterprise communication solution, and Avaya has incorporated features in the 4600 series to protect against unauthorized access and cyber threats. Encryption protocols help safeguard call data, ensuring that sensitive business information remains secure.

In terms of deployment, the Avaya 4600 series can be easily integrated into existing networks, as well as managed remotely, which simplifies the installation and maintenance process. This feature is particularly beneficial for large enterprises that require scalability across multiple locations.

Overall, the Avaya 4600 series combines advanced technology, user-friendly design, and comprehensive security measures to provide a reliable and effective communication solution for businesses. As enterprises continue to adapt to a rapidly changing communication landscape, the Avaya 4600 series remains a strong contender for organizations seeking to enhance their telecommunications infrastructure.