Segment wireless voice and data into separate VLANs.
Ensure that Public Secure Packet Forwarding (PSPF) is not enabled for the voice VLAN as this will prevent clients from
communicating directly when associated to the same access point. If PSPF is enabled, then the result will be no way audio.
Cisco IP Phone 8861 and 8865 Wireless LAN Deployment Guide
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