Sample Voice Packet Capture; Call Admission Control - Cisco 9971 Deployment Manual

Unified ip phone wireless lan deployment guide

Hide thumbs Also See for 9971:

Table of Contents

Interface X

mls qos trust device cisco-phone

mls qos trust dscp

Sample Voice Packet Capture

The packet capture below displays a voice packet bound for the Cisco Unified IP Phone 9971 over the air being marked as

DSCP = EF and UP = 6.

Inbound and outbound call admission control can be enabled on the access point.

Enable Call Admission Control / Wi-Fi MultiMedia Traffic Specifications (TSPEC)

•

Set the desired maximum RF bandwidth that is allocated for voice traffic (default = 75%)

•

Set the bandwidth that is reserved for roaming clients (default = 6%)

•

The Cisco Unified IP Phone 9971 will auto-negotiate the PHY rate to be used for TSPEC. By default it will try 12 Mbps, but if

not enabled on the access point, then it will try the next highest enabled data rate on the access point.

There is no support for load-based CAC or multiple streams on the Cisco Autonomous Access Points therefore it is not

recommended to enable CAC on Cisco Autonomous Access Points.

Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide

Table of Contents