User's Manual

Figure 207 Enabling SIP Session Timer
5. Click Apply.
In the CLI
To configure the session timer and the timeout value:
(host) #configure terminal
(host) (config) #voice sip
(host) (SIP settings) #session-timer
(host) (SIP settings) #session-expiry 400
To view the SIP settings on the controller:
(host) #show voice sip
SIP settings
------------
Parameter Value
--------- -----
Session Timer Enabled
Session Expiry 400 sec
Dialplan Profile N/A
Enabling Wi-Fi Edge Detection and Handover for Voice Clients
Voice clients in an infrastructure can be switched to an alternate carrier or connection when they leave their
active Wi-Fi coverage or roam to an area with poor Wi-Fi coverage. The controller uses the best Wi-Fi signal
strength (dbm value) reported by the voice clients (received from all APs) to determine if the voice clients are
within or leaving their active Wi-Fi connection. If the signal strength is weak, the controller will trigger the
handover process to switch the voice client to an alternate carrier or connection. This process ensures QoS for
voice calls.
l The handover process is available for voice clients supporting the 802.11K standard and with the ability to transmit
and receive beacon reports.
l The voice clients should have dual mode capabilities to ensure that they can switch to an alternate network in case
of a loss in Wi-Fi coverage.
The handover process can be configured using the wlan handover-trigger-profile command. Use the
handover-threshold parameter to specify the threshold value (dbm) and enable the handover-trigger
parameter. If the best signal strength reported by a voice client is equal to or less than the threshold value, the
handover process is initiated.
In the WebUI
1. Navigate to the Configuration > Advanced Services > All Profiles page.
2. Expand Wireless Lan under the Profiles section.
Dell Networking W-Series ArubaOS 6.4.x | User Guide Voice and Video | 922