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2.7. LED Indicators
Description of statuses
color, name
• lights = GSM module is powered
green
• blinking slowly = GSM module is not
POWER
powered (c. 6 seconds after switching on)
• lights = registered into native GSM
green
network
• blinking = registered into GSM, roaming
GSM
• dark = not registered into GSM sítě
• lights = GSM call (after connect)
• blinking slowly = PSTN call (after dialling)
yellow
• blinking fast = off hook before call,
LINE
making connection, incoming ringing
• dark = on-hook, or line error
• lights = GSM data connection established
yellow
• blinking = data exchange with PC, GSM
DATA
data connection not established
• dark = no activity on serial interface
• lights = at least one from these errors:
red
• blinking = GSM signal quality indication
ERROR
• dark = no error
(ATTENTION! It doesn't imply, that GSM
gateway is registered into GSM network!
3. User Manual – Description of Basic (Voice) Function
Users mostly use their PBXs and GSM Gateways intuitively, without reading any
instructions, or follow very simple instructions provided by an authorized person. The following
functional description is therefore intended for technicians, who follow the instructions
(depending on the PBX set-up) and solve any operational problems.
3.1. Outgoing Call to GSM
3.1.1. Picking Up the Line
The PBX picks up a line the moment a subscriber picks up his or her handset and dials a
number (or prefix) that is routed outside.
Note: If the GSM Gateway is busy, the PBX can either give the caller the busy tone
Gateways with one PBX).
o line error
o SIM is not present
o PIN is not entered
or choose another connection (PSTN, or there may be more GSM
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