AudioCodes Mediant 500L - Page 1118

User's Manual 1118 Document #: LTRT-10532
Mediant 500L Gateway & E-SBC
Parameter Description
string.
Note: The parameter can also be configured in a Tel Profile.
Hook-Flash Option
configure voip > gateway dtmf-supp-
service dtmf-and-dialing > hook-flash-
option
[HookFlashOption]
Defines the hook-flash transport type (i.e., method by which
hook-flash is sent and received). For digital interfaces: The
feature is applicable only if the HookFlashCode parameter is
configured.
 [0] Not Supported = (Default) Hook-Flash indication is
not sent.
 [1] INFO = Sends proprietary INFO message (Broadsoft)
with Hook-Flash indication. The device sends the INFO
message as follows:
Content-Type: application/broadsoft; version=1.0
Content-Length: 17
event flashhook
 [4] RFC 2833 = This option is currently not supported.
 [5] INFO (Lucent) = Sends proprietary SIP INFO
message with Hook-Flash indication. The device sends
the INFO message as follows:
Content-Type: application/hook-flash
Content-Length: 11
signal=hf
 [6] INFO (NetCentrex) = Sends proprietary SIP INFO
message with Hook-Flash indication. The device sends
the INFO message as follows:
Content-Type: application/dtmf-relay
Signal=16
Where 16 is the DTMF code for hook flash.
 [7] INFO (HUAWEI) = Sends a SIP INFO message with
Hook-Flash indication. The device sends the INFO
message as follows:
Content-Length: 17
Content-Type: application/sscc
event=flashhook
Note:
 Digital interfaces: The device can interwork DTMF
HookFlashCode to SIP INFO messages with Hook Flash
indication.
 FXO interfaces support only the receipt of RFC 2833
Hook-Flash signals and INFO [1] type.
 FXS interfaces send Hook-Flash signals only if the
EnableHold parameter is set to 0.
Min. Flash-Hook Detection Period
configure voip > interface fxs-fxo >
min-flash-hook-time
[MinFlashHookTime]
Defines the minimum time (in msec) for detection of a hook-
flash event. Detection is guaranteed for hook-flash periods
of at least 60 msec (when setting the minimum time to 25).
Hook-flash signals that last a shorter period of time are
ignored.
The valid range is 25 to 300. The default is 300.
Note:
 The parameter is applicable only to FXS interfaces.
 It's recommended to reduce the detection time by 50