2N TELEKOMUNIKACE a.s., www.2n.cz
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The GSM/UMTS module(s) cannot log in, log in slowly, or log out occasionally.
This problem may be caused by any of the following situations:
The GSM/UMTS signal is low. The minimum signal level should be
approximately
. If lower, change the antenna position or type!
−80dBm
The GSM/UMTS cell (BTS) to which the GSM/UMTS modules are trying to
log in is overloaded. Change the antenna position or reduce the count of
the logged-in GSM/UMTS modules.
One of the GSM/UMTS modules is permanently logged-out or fails to make
outgoing calls:
The problem indicates a GSM/UMTS network overload on the installation
site. To eliminate the problem, set the
parameter to
.
Relax delay
2 seconds
If the GSM module fails to log in or rejects to make outgoing GSM calls
even after the gateway restart, consult your GSM provider for your SIM
card/GSM module availability.
The manufacturer shall not be held liable for any SIM card or provider service
unavailability in the case of a breach of the provider's SIM terms and conditions for the
SIM card use.