QoS standards for SpectraLink handsets
The Polycom SpectraLink Voice over Wireless LAN (VoWLAN) handset range includes Wi-Fi handsets which are compatible with the 3 leading enterprise-grade QoS standards Wi-Fi Multimedia (WMM), SpectraLink (SVP) and Cisco CCXv4. See handset feature summary for handset/QoS compatibility.
Wi-Fi Multimedia (WMM): WMM is a Wi-Fi Alliance standards based QoS solution for VoWLAN. Deploying WMM eliminates the need for a SpectraLink 8000 SVP Server but the access points (AP) must be certified by the Wi-Fi Alliance under the WMM programme.
Wi-Fi Multimedia (WMM): Provides the basic QoS function of packet prioritisation. It improves audio quality by recognizing and handling voice packets as high priority.
Wi-Fi Multimedia Power Save (WMM-PS): Provides the QoS function of timed delivery. It extends battery life by scheduling the delivery of packets to allow the handset known rest periods.
SpectraLink compatible WMM-PS AP's
Wi-Fi Multimedia Admission Control (WMM-AC): Provides the QoS function of bandwidth management. It avoids over subscription by allocating available bandwidth based on application requirements and increases call capacity through efficient use of AP resources.
SpectraLink Voice Priority (SVP): SpectraLink Voice Priority is a legacy standard for QoS on Wi-Fi networks. To deploy SVP a SpectraLink 8000 SVP Server is required and the wireless LAN access (AP's) points must be compatible with SVP.
Cisco CCXv4: Cisco Client Extensions Version 4 (CCXv4) is a set of requirements for client devices operating on a Cisco WLAN that use industry standards, including the WMM mechanisms, and a few Cisco-specific features. Deploying CCX eliminates the need for a SpectraLink 8000 SVP server.
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