Dell PowerConnect W-Airwave W-Airwave 7.2 Configuration Guide - Page 97

Table 39 Profiles > QoS > VoIP Call Admission Control Profile Settings (Continued) Field Default Description VoIP Disconnect Extra No Call In the VoIP Call Admission Control (CAC) profile, you can limit the number of active voice calls allowed on a radio. This feature is disabled by default. When the disconnect extra call feature is enabled, the system monitors the number of active voice calls, and if the defined threshold is reached, any new calls are disconnected. The AP denies association requests from a device that is on call. Enable or disable this feature in this field. You also need to enable call admission control, which is disabled by default, in this profile. VoIP TSPEC Enforcement No A WMM client can send a Traffic Specification (TSPEC) signaling request to the AP before sending traffic of a specific AC type, such as voice. You can configure the controller so that the TSPEC signaling request from a client is ignored if the underlying voice call is not active; this feature is disabled by default. If you enable this feature, you can also configure the number of seconds that a client must wait to start the call after sending the TSPEC request (the default is one second). You enable TSPEC signaling enforcement in the VoIP Call Admission Control profile. This field enables or disables TSPEC Enforcement. VoIP TSPEC Enforcement 1 Period (0-100) When TSPEC is enabled, this field sets the number of seconds that a client must wait to start the call after sending the TSPEC request. VoIP Drop SIP Invite and 486 Send Status Code (Client) The SIP invite call setup message is time-sensitive, as the originator retries the call as quickly as possible if it does not proceed. You can direct the controller to immediately reply to the call originator with a "SIP 100 - trying" message to indicate that the call is proceeding and to avoid a possible timeout. This is useful in conditions where the SIP invite may be redirected through a number of servers before reaching the controller. Use this field to enable or disable SIP call setup keepalive in the VoIP Call Admission Control profile for the client. VoIP Drop SIP Invite and 486 Send Status Code (Server) The SIP invite call setup message is time-sensitive, as the originator retries the call as quickly as possible if it does not proceed. You can direct the controller to immediately reply to the call originator with a "SIP 100 - trying" message to indicate that the call is proceeding and to avoid a possible timeout. This is useful in conditions where the SIP invite may be redirected through a number of servers before reaching the controller. Use this field to enable or disable SIP call setup keepalive in the VoIP Call Admission Control profile for the server. 3. Select Add or Save. The added or edited profile appears on Profiles > QoS > VoIP Call Admission Control. Profiles > QoS > WMM Traffic Management Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance specification based on the IEEE 802.11e wireless Quality of Service (QoS) standard. WMM works with 802.11a, b, g, and n physical layer standards. WMM supports four access categories (ACs): voice, video, best effort, and background. The 802.1D priority value is contained in a two-byte QoS control field in the WMM data frame. NOTE: Configure the virtual AP traffic management profile before applying the WMM traffic management profile to the virtual AP profile. Perform these steps to configure a WMM Traffic Management profile. 1. Select Profiles > QoS > WMM Traffic Management in the Dell PowerConnect W Navigation pane. The details page summarizes the current profiles of this type. 2. Select the Add button to create a new WMM Traffic Management profile, or click the pencil icon next to an existing profile to edit. The Details page appears. Complete the settings as described in Table 17: Dell PowerConnect W AirWave 7.2 | Configuration Guide Dell PowerConnect W Configuration Reference | 97