Mobile interface
U
SER
G
UIDE
90
dBm
No. bars
-105 to -100
0
-100 to -95
1
-95 to -90
2
-90 to -85
3
> -85
4
A
CSQ
value of
99,0
indicates no signal available (modem not connected to the network).
By activating the system logging mechanism, it is possible to check any problems of activation of
the link. In order to activate the logging system, the commands described in the specific chapter
can be used.
Here follow 2 sections of log messages of a properly activated session and a session which cannot
be activated (APN error):
root@Imola>
set gprs on
root@Imola>
show log
Jan 1 04:47:25 localhost GPRS[13375]: Modem OK
Jan 1 04:47:31 localhost pppd[13380]: pppd 2.4.1 started by root, uid 0
Jan 1 04:47:38 localhost pppd[13380]: Serial connection established.
Jan 1 04:47:38 localhost pppd[13380]: Using interface ppp0
Jan 1 04:47:38 localhost pppd[13380]: Connect: ppp0 <--> /dev/ttyS1
Jan 1 04:47:38 localhost pppd[13380]: Remote message: TTP Com PPP - Password Verified OK
Jan 1 04:47:39 localhost pppd[13380]: local IP address 217.201.192.147
Jan 1 04:47:39 localhost pppd[13380]: remote IP address 10.0.0.1
root@Imola>
set gprs on
root@Imola>
set log
Jan 1 04:47:25 localhost GPRS[13375]: Modem OK
Jan 1 04:47:31 localhost pppd[13380]: pppd 2.4.1 started by root, uid 0
Jan 1 04:47:38 localhost pppd[13380]: Serial connection established.Jan 1 05:03:07
localhost pppd[14236]: Using interface ppp0
Jan 1 05:03:07 localhost pppd[14236]: Connect: ppp0 <--> /dev/ttyS1
Jan 1 05:03:08 localhost pppd[14236]: Remote message: TTP Com PPP - Password Verified OK
Jan 1 05:03:17 localhost pppd[14236]: Terminating on signal 15.
Jan 1 05:03:17 localhost pppd[14236]: Connection terminated.
Jan 1 05:03:18 localhost pppd[14236]: Exit.
It is possible to establish the sequence of activation of the PPP protocol by specifying the option:
set gprs debug
In this case the sequence of log messages contains more details about the phase of negotiation of
parameters:
root@Imola>
set gprs on
