Installation guide

IP call quality management 28-11
Chapter 28: Understanding Wave IP Telephony
Wave Global Administrator Guide
The bandwidth management zone parameters you can configure include the maximum amount
of bandwidth used for all calls across a zone boundary, and the preferred codecs, desired
transmit packet times, and desired silence suppression setting for inter-zone and intra-zone IP
calls.
Intra-zone calls are calls made between phones within a zone boundary. Inter-zone calls are calls
that are made across zone boundaries. Codecs should be assigned such that you can maximize
bandwidth on both inter-zone and intra-zone IP calls. Calls within a zone boundary are likely to
have more bandwidth available to them than calls connected across zone boundaries.
IP call quality management
There are several advanced settings, in addition to the Bandwidth Management settings, that
allow you to manage the quality of your IP calls.
• Jitter buffer
• Echo cancellation
• Comfort noise
•Gain
• DTMF transport settings
• Quality Of Service (QoS) settings
Caution: These are expert settings that should not be modified unless you are
instructed to do so by your Vertical Technical Support representative. Information
about these settings is located in “Adjusting IP call quality parameters” on page 6-39.
Release 2.0
September 2010