AudioCodes Mediant 4000 SBC - Syslog Fields for Answering Machine Detection (AMD)

CHAPTER52 Syslog and Debug Recording
Mediant 4000 SBC | User's Manual
Error Abbreviation Error Name Description
IC Invalid CID Error
IG Invalid G723 Code
IP Invalid payload length
IR Invalid RTCP Packet
IS Invalid SID Length
LC Transmitter Received Illegal Command
LF Lost Fax Frames In High Speed Mode
LM Lost Modem Frames In High Speed Mode
MI Misalignment Error
MR Modem Relay Is Not Supported
PD RTP Packet Duplicated
OR DSP JB Overrun
PH Packet Header Error
PL RTP Packet Loss
RB Counts the number of BFI Frames Received From The Host
RD No Available Release Descriptor
RO RTP Reorder
RP Unknown RTP Payload Type
RS RTP SSRC Error
UF Unrecognized Fax Relay Command
Syslog Fields for Answering Machine Detection (AMD)
The Syslog message can include information relating to the Answering Machine Detection (AMD)
feature. AMD is used to detect whether a human (including a fax machine), an answering machine,
silence, or answering machine beeps have answered the call on the remote side.
■ AMDSignal – the field can acquire one of the following values:
● voice (V)
● answer machine (A)
● silence (S)
● unknown (U)
■ AMDDecisionProbability – probability (in %) success that correctly detects answering type
Below is an example of such a Syslog message with AMD information:
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