Adaptive Jitter Buffer Management
Voice Activity Detection
Silence Suppression
Comfort Noise Generation
Acoustic Echo Cancellation (3rd party sourced, not provided by Microsoft)
5 Hardware and Firmware
This category is related to WLAN and other hardware/firmware components in the handset that are critical to the performance and usability of VoIP.
Supported:
802.11b/g
802.11i (PEAPv0 and
Encryption suites: WEP64, WEP128, TKIP and AES CCMP
Not Supported:
Full 802.1X Supplicant – Microsoft provides the limited set of EAP authentication noted above. Additional EAP methods may be required by some customers.
*A 3rd party supplicant is currently under consideration for a future release
Fast Roaming – A basic roaming agent has been implemented, and specific roaming performance results will be published when they become available. 802.11r “Fast Roaming” is currently unsupported.
*Fast roaming enhancements are under consideration for a future release
Cisco Compatible Extensions (CCX) – The WLAN module firmware and driver would have to be updated to support the CCX v4 ASD feature set.
*A CCX v4 implementation is currently under consideration for a future release
Certain features of 802.11e [WMM] are not currently supported.
oAutomatic Power Save Delivery (APSD) and Unscheduled Automatic Power Save Delivery
currently supported.
oEven though packet tagging [802.1p and Diffserv] is inherently supported by Windows Mobile 6, there may not be any benefit by tagging voice packets with a higher priority.