AudioCodes MediaPack MP-118

User's Manual 406 Document #: LTRT-65422
MP-11x & MP-124
• 15 = AC Voltage Tip-Ground [V]
• 16 = AC Voltage Ring-Ground [V]
• 17 = All the above
Notes:
• Use the Analog Line testing mechanism only for monitoring and never
when there are calls in progress.
• Line electrical measurements are supported only on certain MP-124
hardware assemblies. For more information, contact your AudioCodes'
sales representative.
40.2 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 (detailed below), 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.