AudioCodes Mediant 500 MSBR, User Manual

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User's Manual 186 Document #: LTRT-10375
Mediant 500 MSBR
AMD

Voice (live voice)

Automata (answering machine)

Silence (no voice)

Unknown

Beep (greeting message of
answering machine)
Event detection using the AMD feature. For more
information, see Answering Machine Detection
(AMD) on page 190.
CPT

SIT-NC

SIT-IC

SIT-VC

SIT-RO

Busy

Reorder

Ringtone

Beep (greeting message of
answering message)
Event detection of tones using the CPT file.
1
Create a CPT file with the required tone types of
the events that you want to detect.
2
Install the CPT file on the device.
3
For SIT detection:
a. Set the SITDetectorEnable parameter to 1.
b. Set the UserDefinedToneDetectorEnable
parameter to 1.
Note:

For more information on SIT detection, see SIT
Event Detection on page 186.

To configure beep detection, see Detecting
Answering Machine Beep on page 187.
FAX

CED

Set the IsFaxUsed parameter to any value other
than 0.
- or -

Set the IsFaxUsed parameter to 0 and the
FaxTransportMode parameter to any value other
than 0.

modem
Set the VxxModemTransportType parameter to 3.
PTT

voice-start

voice-end
Set the EnableDSPIPMDetectors parameter to 1.
17.4.1 SIT Event Detection
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.
Table 17-2: Special Information Tones (SITs) Reported by the device
Special
Information
Tones (SITs)
Description First Tone
Frequency Duration
Second Tone
Frequency Duration
Third Tone
Frequency
Duration