User's Manual 67. Configuration Parameters Reference
Version 6.8 893 Mediant 500L MSBR
67.10.2 DTMF and Hook-Flash Parameters
The DTMF and hook-flash parameters are described in the table below.
Table 67-39: DTMF and Hook-Flash Parameters
Parameter Description
Hook-Flash Parameters
Web/EMS: Hook-Flash Code
CLI: hook-flash-code
[HookFlashCode]
For analog interfaces: Defines the digit pattern that when
received from the Tel side, indicates a Hook Flash event.
For digital interfaces: Defines the digit pattern used by the
PBX to indicate a Hook Flash event. When this pattern is
detected from the Tel side, the device responds as if a Hook
Flash event has occurred and sends a SIP INFO message if
the HookFlashOption parameter is set to 1, 5, 6, or 7
(indicating a Hook Flash). If configured and a Hook Flash
indication is received from the IP side, the device generates
this pattern to the Tel side.
The valid range is a 25-character string. The default is a null
string.
Note: This parameter can also be configured in a Tel Profile.
Web/EMS: Hook-Flash Option
CLI: hook-flash-option
[HookFlashOption]
Defines the hook-flash transport type (i.e., method by which
hook-flash is sent and received). For digital interfaces: This
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