Installation and Maintenance Manual

Avaya B179 SIP Conference Phone Installation and Administration Guide

SETTINGS

MEDIA



Select Settings > Media.

The media settings determine how audio is sent between the devices. The devices negoti-

ate via SIP before a call is connected. All devices must support the same media types,

codecs and security settings.

Codec

Codecs are used to convert an analog voice signal to a digitally encoded version and vice

versa. Codecs vary in the sound quality they deliver and the bandwidth required. The

Avaya B179 supports the most common codecs and each codec can be given a prec-

edence depending on your requirements for high quality audio or low bandwidth use.

The priority can be set to from 4 (high) to 1 (low) or 0 (disabled)

G722 G.722 is an ITU-T standard codec that provides 7 kHz wideband audio

at a data rate within 64 kbit/s. It offers greately improved speech

quality compared with older narrowband codecs such as G.711, but

requires a high quality network connection between the devices.