Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 345 Ver. 1.00 – 10/29/2008
4.14.3 $NETMON Monitor Network Availability
(continued)
Parameter Values
<net_unavail_min > Number of minutes the network must
remain unavailable before current GPRS
Activation is released, and a new GPRS
Activation is attempted. Network availability
is determined by monitoring GPRS attach
status (AT%CGREG) and valid Network IP
(AT$NETIP). A value of zero means the
GPRS Activation will never be released via
AT$NETMON.
<reset_cnt > Number of GPRS Activations attempted
before all volatile network knowledge is
erased and the modem performs a soft
reset. A value of 1 indicates the modem
will perform a graceful detach from the
network and then a soft reset of the device.
For values greater than 1, the modem will
attempt a GPRS deactivation / activation
sequence every <net_unavail_min> until
the number of attempts equals <reset_cnt>.
The modem then will perform a graceful
detach from the network and then a soft
reset. A value of zero indicates that a
modem reset will never occur via
AT$NETMON.
<ping check > Number of minutes between modem-
initiated ping checks. If no network data
has been received within <ping check>
minutes, the modem will initiate pings (up to
4 ICMP messages are generated) to the 1
st
server on the $FRIEND list. If no ping
response is received to any of the 4 ICMP
messages, the modem will initiate pings to
the next server in the list. If no ping
response is returned from any of the
$FRIEND servers, a new IP is obtained via
a modem-initiated GPRS de-activation /
activation sequence. A value of zero