Physical Description of Front Panel
[The number and type of port interfaces depend on your ordered hardware configuration.]
Telephony port interfaces and DSP resources, which can include any one or a
combination of FXS (RJ-11), FXO (RJ-11), ISDN BRI (RJ-45), ISDN PRI (RJ-48), and
Media Processing Module (MPM) interfaces.
Phone is in off-hook position.
Malfunction in line or out of service due to Serial
Peripheral Interface (SPI) failure.
Phone is in on-hook position or no power.
FXO line with PBX is in off-hook position.
Ringing is detected from PBX.
Malfunction in line or out of service due to SPI
FXO line is in on-hook position or no power.
Physical Layer 1 is synchronized (normal operation).
Physical Layer 1 is not synchronized.
PRI (E1/T1) port status LED:
Trunk is synchronized (normal operation).
Loss due to one of the following signals:
LOS (Loss of Signal)
LOF (Loss of Frame)
AIS (Alarm Indication Signal - Blue Alarm)
RAI (Remote Alarm Indication - Yellow Alarm)
Failure or disruption in power supply or power is not
being supplied to the device through the power supply
entry.