Caller Id; Why Doesn't The Fxo Device Detect Caller Id - AudioCodes MediaPack MP-11 Series Troubleshooting Manual

Troubleshooting Guide
5

Caller ID

This section discusses troubleshooting for caller ID:
''Why Doesn't the FXO Device Detect Caller ID'' on page
''Why Doesn't the Phone Detect Caller ID (FXS)'' on page
''Why Doesn't Digital Device Detect Tel-to-IP Caller ID'' on page
''Why Doesn't Digital Device Generate Caller ID to Tel'' on page
5.1

Why Doesn't the FXO Device Detect Caller ID

The troubleshooting information below is relevant to FXO devices that do not detect the
Caller ID signal that is sent by the PBX (i.e. Tel-to-IP calls).
Table 5-1: PBX Caller ID not Detected by FXO Device Troubleshooting
Possible Cause
1. Caller ID is not enabled on the
device.
2. The Caller ID standard of the
device and the PBX are not the
same.
3. The DC offset from the PBX
prevents Caller ID detection.
4. Caller ID Transfer type is not
configured to mute.
5. Distorted Caller ID signal due to
incorrect line characteristics.
6. Number of rings before device
begins detecting Caller ID signal
is not configured.
Version 5.2/5.4
Verify that the parameter EnableCallerID is set to 1.
Verify that the caller ID standard (and substandard) of the
device match the standard (and substandard) of the
PBX/Tel, using the following ini file parameters:
CallerIDType
BellcoreCallerIDTypeOneSubStandard
ETSICallerIDTypeOneSubStandard
Enable DC removal option, by setting the ini file parameter
ECDCRemoval to 1 (using the Web interface's AdminPage).
Note: The device must be reset for this setting to take effect.
Verify that the parameter CallerIDTransportType is set to
default (i.e., 3 or "Mute" in the Web interface's
'Fax/Modem/CID Settings' page - Web path SW Ver. 5.2:
Advanced Configuration menu > Media Settings menu >
Fax/Modem/CID Settings; Web path SW Ver. 5.4 and later:
Configuration tab > Media Settings menu > Fax/Modem/CID
Settings).
If the caller ID signal is distorted, the device does not
recognize it. Verify that the correct line characteristics are
used (using the ini file parameter CountryCoefficients).
Configure the number of rings (using the ini file parameter
RingsBeforeCallerID) before the device starts detection of
caller ID. Typically, the Caller ID signals are detected
between the first and second rings. However, sometimes the
Caller ID is detected before the first ring signal (in such a
scenario, set the ini file parameter RingsBeforeCallerID to 0).
Note: The number of rings before sending Caller ID is
determined by the PBX providing the analog line.
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Solution
January 2009
5. Caller ID