AudioCodes Mediant 500L MSBR

User's Manual 61. Analog Line Testing
Version 6.8 755 Mediant 500L MSBR
61 Analog Line Testing
61.1 FXO Line Testing
The device can test the telephone lines connected to its FXO ports, using the SNMP
acAnalogFxoLineTestTable table. These tests provide various line measurements. In
addition to these tests, a keep-alive test is also done every 100 msec on each of the
analog ports to detect communication problems with the analog equipment:

Line Current (mA)

Line Voltage (V)

Hook (0 = on-hook; 1 = off-hook)

Ring (0 - Off; 1 - On)

Line Connected (0 = Disconnected; 1 = Connected)

Polarity state (0 = Normal; 1 = Reversed, 2 = N\A)

Line polarity (0 = Positive; 1 = Negative)

Message Waiting Indication (0 = Off; 1 = On)
Note: Use the Analog Line testing mechanism only for monitoring and never when
there are calls in progress.