AudioCodes Mediant 800 User Manual page 512

CHAPTER 19 Coders and Profiles
Parameter
'DID Wink'
enable-did-wink
[TelProfile_EnableDIDWink]
Mediant 800 Gateway & E-SBC | User's Manual
Description
Enables Direct Inward Dialing (DID) using Wink-Start
signaling, typically used for signaling between an E-911
switch and the PSAP.
■ [0] Disable (default)
■ [1] Single = The device can be used for connection to
EIA/TIA-464B DID Loop Start lines. FXO (detection)
and FXS (generation) are supported:
✔
FXO Interfaces: The device dials DTMF (or MF)
digits upon detection of a Wink signal, instead of a
dial tone.
✔
FXS Interfaces: The device generates a Wink
signal upon detection of an off-hook state, instead
of playing a dial tone.
For example: (Wink) KP I(I) xxx-xxxx ST (Off Hook)
Where:
✔
I = one or two information digits
✔
x = ANI
Note: The FXO interface generates such MF digits
when the Enable911PSAP parameter is set to 1.
■ [2] Double Wink = Double-wink signaling. This is
applicable to FXS interfaces only. The device
generates the first Wink upon detection of an off-hook
state in the line. The second Wink is generated after a
user-defined interval (configured by the
TimeBetweenDIDWinks parameter) after which the
DTMF/MF digits are collected by the device. Digits that
arrive between the first and second Wink are ignored as
they contain the same number. For example:
(Wink) KP 911 ST (Wink) KP I(I) xxx-xxxx ST (Off
Hook)
■ [3] Wink & Polarity =
✔
FXS Interfaces: The device generates the first
Wink after it detects an off-hook state. A polarity
change from normal to reversed is generated after a
user-defined time (configured by the
TimeBetweenDIDWinks parameter). DTMF/MF
digits are collected by the device only after this
polarity change. Digits that arrive between the first
Wink and the polarity change are ignored as they
always contain the same number. In this mode, the
device does not generate a polarity change to
normal if the Tel-to-IP call is answered by an IP
party. Polarity reverts to normal when the call is
released. For example:
(Wink) KP 911 ST (Polarity) KP I(I) xxx-xxxx ST
(Off Hook)
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