982| Voice and Video AOS-W 6.5.3.x| User Guide
Working with Voice over Remote Access Point
Voice traffic support is enhanced on split tunnel mode over a remote access point. The voice traffic
management for remote and local users are done on the switch. However, the sessions are created differently
for both users. For remote users, the sessions are created on the remote access point and for local users, the
sessions are created on the switch. This enhancement provides the following support for the voice traffic in the
split tunnel over remote access point:
n voice traffic QoS is consistent for both local and remote users
n all voice ALGs work reliably in split tunnel mode when the PBX traffic is destined to flow through the
corporate network.
n provides voice statistics and counters for remote voice clients in the split tunnel mode
The flag parameter in the show voice client-status command is updated to indicate remote users:
(host) #show voice client-status
Voice Client(s) Status
----------------------
AP Name BSSID ESSID Client(MAC) Client(IP) Client Name Server(IP)
Registration State Call Status ALG Flags
------- ----- ----- ----------- ---------- ----------- ---------- --
---------------- ---------- --- -----
moscato 00:0b:11:5c:d6:80 home 00:00:5c:04:b3:10 10.20.1.100 Client 10.13.8.1
REGISTERED Idle h323 R
Num Clients:1
Flags: R - Remote user
Understanding Battery Boost
Battery boost is an optional feature that can be enabled for any SSIDs that support voice traffic. This feature
converts all broadcast and multicast traffic to unicast before delivery to the client. Enabling battery boost on
an SSID allows you to set the DTIM interval from 10 to 100 (the previous allowed values were 1 or 2), equating
to 1,000 to 10,000 milliseconds. This longer interval keeps associated wireless clients from activating their
radios for multicast indication and delivery, leaving them in power-save mode longer, and thus lengthening
battery life. The DTIM configuration is performed on the WLAN, so no configuration is necessary on the client.
An associated parameter available on some clients is the Listening Interval (LI). This defines the interval (in
number of beacons) after which the client must wake to read the Traffic Indication Map (TIM). The TIM
indicates whether there is buffered unicast traffic for each sleeping client. With battery boost enabled, the
DTIM is increased but multicast traffic is buffered and delivered as unicast. Increasing the LI can further
increase battery life, but can also decrease client responsiveness.
Do not enable battery boost if your network includes Polycom SpectraLink devices that use the Push-to-Talk feature.
You can use the WebUI or CLI to enable the battery boost feature and set the DTIM interval in the SSID profile.
In the WebUI
1. Navigate to the Configuration > AP Configuration page. Select either the AP Group tab or AP Specific
tab.
l If you selected AP Group, click Edit by the AP group name for which you want to enable battery boost.
l If you selected AP Specific, select the name of the AP for which you want to enable battery boost.
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