ZyXEL Communications VMG8924-B30A Firmware Release Notes page 11

Voice Features
© ZyXEL Communication Corp.
Proprietary & Confidential Information
 Client connection : A minimum of 32 clients simultaneously
connect to the AP
 Adjustable WLAN output power(via CLI , xml)
 Hidden SSID support
 Generate default unique ESSID by serial number (show on CPE
back label)
 Generate default unique wireless KEY by MAC (show on CPE
back label)
 Separate QoS configuration for each SSID

Channel Scan (Channel Status)
 Wireless Scheduling for power off/on
 WPS 2.0 certificate

Isolation (Guest WLAN)
 WPS AP PIN attack prevent mechanism (WPS lock down)
 SIP (Section Initiating Protocol, RFC 3261) version 2
Codec: G711 a/μ (64K) (Fullrate feature), G.726 G.722

 G.168 echo cancellation (8ms ~ 16ms)
 Fax/modem detection and pass-through
 Voice Active Detector (VAD)
 Silence Suppression
 Comfort Noise Generation (CNG)

Dynamic Jitter Buffer.
 DTMF Detection and Generation
 DTMF relay by In-Band and Out-of-Band (RFC 2833, SIP INFO)
 SIP account (URL type included)
 On hook, off hook and flash detection.
 Dialing Type: Tone
 Ring cadence frequency can be tuned by firmware by country.

Tip/ring polarity reversal

Ringing Voltage: min 45V RMS at 5 REN (FXS
 Caller ID (FSK.DTMF)
 Country Code(default support: USA, BELGIUM, DENMARK,
FINLAND, NETHERLAND, NORWAY, PORTUGAL, SPAIN,
SWEDEN, SWITZERLAND, GERMANY, Australia, Ireland)
 Call Forwarding (No condition, Busy, No answer)
 Call Transferring (Blind, ConsultOnHold, Attendant)
 Call Hold / Call Retrieve
 Three Way Conference
 Abbreviated Dialing (Speed Dial)
 Phone Book
 Internal Call
 Early Media
 Anonymous Call
 Call Waiting
 Call Accept

Conference-DSP local mixer
 Second Call
 IVR (Interactive Voice Response)
 Flash Hook Timer
)
Page 11 of 31