User's Manual 55. Reporting Information to External Party
Version 6.8 725 Mediant 500L MSBR
(4923 1) h323-ivr-out = h323-incoming-conf-id:02102944 600a1899
3fd61009 0e2f3cc5
(4923 30) h323-disconnect-cause = 22 (0x16)
(4923 27) h323-call-type = VOIP
(4923 26) h323-call-origin = Originate
(4923 24) h323-conf-id = 02102944 600a1899 3fd61009 0e2f3cc5
55.4 Event Notification using X-Detect Header
The device can notify a remote party of the occurrence (or detection) of certain events in
the media stream. The device detects events and notifies their occurrence, using the SIP
X-Detect message header and only when establishing a SIP dialog.
Note: This feature is applicable only to the Gateway application (not SBC).
The table below lists the supported event types (and subtypes) and the corresponding
device configurations that you need to do:
Table 55-6: Supported X-Detect Event Types
Events Type Subtype Required Configuration
CPT SIT-NC
SIT-IC
SIT-VC
SIT-RO
Busy
Reorder
Ringtone
SITDetectorEnable = 1
UserDefinedToneDetectorEnable = 1
Note: Ensure that the CPT file is configured with the required tone
type.
FAX CED (IsFaxUsed ≠ 0) or (IsFaxUsed = 0, and FaxTransportMode ≠ 0)
modem VxxModemTransportType = 3
PTT voice-start
voice-end
EnableDSPIPMDetectors = 1
The device can detect and report the following Special Information Tones (SIT) types from
the PSTN:
SIT-NC (No Circuit found)
SIT-IC (Operator Intercept)
SIT-VC (Vacant Circuit - non-registered number)
SIT-RO (Reorder - System Busy)
There are additional three SIT tones that are detected as one of the above SIT tones:
The NC* SIT tone is detected as NC
The RO* SIT tone is detected as RO
The IO* SIT tone is detected as VC
The device can map these SIT tones to a Q.850 cause and then map them to SIP 5xx/4xx
responses, using the parameters SITQ850Cause, SITQ850CauseForNC,
SITQ850CauseForIC, SITQ850CauseForVC, and SITQ850CauseForRO.