Problem AT Commands in Linux

[aponce]

Hi guys,

I have a problem with the modem MC8795V, this device is installed on

OS: Ubuntu 12.04 LTS
Kernel: 3.2.0-23-generic
Driver v.1.7.50

When I run the command “ati” by minicom in the /dev/ttyUSB4 gives me the following reply:

---

ati
Sierra Wireless, Incorporated
MC8795V
APP1

OK

In other times the command ATi send me more information about dispositvo:

---

ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC8795V
Revision: K2_0_7_46CAP C: / WS / FW / K2_0_7_46CAP / MSM6290 / SRC 2010/12/13 22:29:01
IMEI: 355310038197335
IMEI SV: 25
FSN: CHJ2904329110
3GPP Release 6

• GCAP: + CGSM, + FCLASS, + DS

OK

Another thing I’ve seen is that there are more commands than just answer me with “OK” as in the case of “AT!GSTATUS?” command?

Anyone know if this is normal or if I have to do something to get more information modem?

Best Regards.

PS: Sorry for my bad English.

[mlw]

Hi,

The clue is in the response from the ATI command where it responds with APP1, this inidcates that it in the end point intended for use with a dial up connection and as a result does not have a full AT parser operational on it hence it just answers OK to most of the commands without giving the expected response.

I suspect on your system that the full AT parser is going to be on /dev/ttyUSB3, run minicom against this and see what happens.

Regards

Matt

[aponce]

thanks for you answeer mlw!!! , OK lets beggin!!!

---

– Get the modem device ttyUSB –

root@ubuntu:~# dmesg | grep ttyUSB
[ 442.374716] usb 1-2: Sierra USB modem converter now attached to ttyUSB0
[ 442.377216] usb 1-2: Sierra USB modem converter now attached to ttyUSB1
[ 442.379329] usb 1-2: Sierra USB modem converter now attached to ttyUSB2
[ 442.381982] usb 1-2: Sierra USB modem converter now attached to ttyUSB3
[ 442.383400] usb 1-2: Sierra USB modem converter now attached to ttyUSB4
[ 442.385138] usb 1-2: Sierra USB modem converter now attached to ttyUSB5
[ 442.386742] usb 1-2: Sierra USB modem converter now attached to ttyUSB6

Well I try connect to /dev/ttyUSB4 again with the “ATI” command and here have the last result (a few info)

---

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB4

Press CTRL-A Z for help on special keys

Sierra Wireless, Incorporated
MC8795V
APP1

OK

I suspect on your system that the full AT parser is going to be on /dev/ttyUSB3, run minicom against this and see what happens.

OK, lets connect to /dev/ttyUSB3.

---

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB3

Press CTRL-A Z for help on special keys

OK
ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC8795V
Revision: K2_0_7_46CAP C:/WS/FW/K2_0_7_46CAP/MSM6290/SRC 2010/12/13 22:29:01
IMEI: 355310038197079
IMEI SV: 25
FSN: CHJ2904162310
3GPP Release 6
+GCAP: +CGSM,+DS,+ES

OK

---

With the /dev/ttyUSB3 it’s works!!! but the device isn’t connect to internet provider configuration, now I connect to internet provider with NetworkManager.

---

root@ubuntu:~# cat /var/log/syslog
May 12 12:59:12 ubuntu kernel: [ 412.344148] usb 2-1: USB disconnect, device number 2
May 12 12:59:12 ubuntu kernel: [ 412.344751] pl2303 ttyUSB4: pl2303 converter now disconnected from ttyUSB4
May 12 12:59:12 ubuntu kernel: [ 412.344855] pl2303 2-1:1.0: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.298970] usb 1-2: USB disconnect, device number 6
May 12 12:59:26 ubuntu kernel: [ 426.299526] sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
May 12 12:59:26 ubuntu kernel: [ 426.299623] sierra 1-2:1.0: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.302102] sierra ttyUSB1: Sierra USB modem converter now disconnected from ttyUSB1
May 12 12:59:26 ubuntu kernel: [ 426.302208] sierra 1-2:1.1: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.303753] sierra ttyUSB2: Sierra USB modem converter now disconnected from ttyUSB2
May 12 12:59:26 ubuntu kernel: [ 426.303860] sierra 1-2:1.2: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.305002] sierra ttyUSB3: Sierra USB modem converter now disconnected from ttyUSB3
May 12 12:59:26 ubuntu kernel: [ 426.305108] sierra 1-2:1.3: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.305849] sierra ttyUSB5: Sierra USB modem converter now disconnected from ttyUSB5
May 12 12:59:26 ubuntu kernel: [ 426.305947] sierra 1-2:1.4: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.306679] sierra ttyUSB6: Sierra USB modem converter now disconnected from ttyUSB6
May 12 12:59:26 ubuntu kernel: [ 426.306778] sierra 1-2:1.5: device disconnected
May 12 12:59:26 ubuntu kernel: [ 426.307505] sierra ttyUSB7: Sierra USB modem converter now disconnected from ttyUSB7
May 12 12:59:26 ubuntu kernel: [ 426.307611] sierra 1-2:1.6: device disconnected
May 12 12:59:26 ubuntu modem-manager[532]: (tty/ttyUSB3): released by modem /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2
May 12 12:59:26 ubuntu NetworkManager[561]: (ttyUSB3): now unmanaged
May 12 12:59:26 ubuntu NetworkManager[561]: (ttyUSB3): device state change: disconnected → unmanaged (reason ‘removed’) [30 10 36]
May 12 12:59:26 ubuntu NetworkManager[561]: (ttyUSB3): cleaning up…
May 12 12:59:26 ubuntu NetworkManager[561]: (ttyUSB3): taking down device.
May 12 12:59:26 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 12:59:26 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 12:59:42 ubuntu kernel: [ 442.236103] usb 1-2: new high-speed USB device number 7 using ehci_hcd
May 12 12:59:42 ubuntu kernel: [ 442.373301] sierra 1-2:1.0: Sierra USB modem converter detected
May 12 12:59:42 ubuntu kernel: [ 442.374037] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.374716] usb 1-2: Sierra USB modem converter now attached to ttyUSB0
May 12 12:59:42 ubuntu kernel: [ 442.375274] sierra 1-2:1.1: Sierra USB modem converter detected
May 12 12:59:42 ubuntu kernel: [ 442.376434] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.377216] usb 1-2: Sierra USB modem converter now attached to ttyUSB1
May 12 12:59:42 ubuntu kernel: [ 442.377791] sierra 1-2:1.2: Sierra USB modem converter detected
May 12 12:59:42 ubuntu kernel: [ 442.378664] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.379329] usb 1-2: Sierra USB modem converter now attached to ttyUSB2
May 12 12:59:42 ubuntu kernel: [ 442.379889] sierra 1-2:1.3: Sierra USB modem converter detected
May 12 12:59:42 ubuntu udevd[1807]: failed to execute ‘/lib/udev/mtp-probe’ ‘mtp-probe /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2 1 7’: No such file or directory
May 12 12:59:42 ubuntu kernel: [ 442.381538] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.381982] usb 1-2: Sierra USB modem converter now attached to ttyUSB3
May 12 12:59:42 ubuntu kernel: [ 442.382343] sierra 1-2:1.4: Sierra USB modem converter detected
May 12 12:59:42 ubuntu kernel: [ 442.383044] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.383400] usb 1-2: Sierra USB modem converter now attached to ttyUSB4
May 12 12:59:42 ubuntu kernel: [ 442.383798] sierra 1-2:1.5: Sierra USB modem converter detected
May 12 12:59:42 ubuntu kernel: [ 442.384782] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.385138] usb 1-2: Sierra USB modem converter now attached to ttyUSB5
May 12 12:59:42 ubuntu kernel: [ 442.385526] sierra 1-2:1.6: Sierra USB modem converter detected
May 12 12:59:42 ubuntu kernel: [ 442.386273] usb 1-2: APM supported, enabling autosuspend.
May 12 12:59:42 ubuntu kernel: [ 442.386742] usb 1-2: Sierra USB modem converter now attached to ttyUSB6
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB3) opening serial port…
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB1) opening serial port…
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB2) opening serial port…
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB6) opening serial port…
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB0) opening serial port…
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB4) opening serial port…
May 12 12:59:42 ubuntu modem-manager[532]: (ttyUSB5) opening serial port…
May 12 12:59:44 ubuntu modem-manager[532]: (ttyUSB3) closing serial port…
May 12 12:59:44 ubuntu modem-manager[532]: (ttyUSB3) serial port closed
May 12 12:59:44 ubuntu modem-manager[532]: (ttyUSB3) opening serial port…
May 12 12:59:44 ubuntu modem-manager[532]: (Sierra): GSM modem /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2 claimed port ttyUSB3
May 12 12:59:45 ubuntu modem-manager[532]: (ttyUSB3) closing serial port…
May 12 12:59:45 ubuntu modem-manager[532]: (ttyUSB3) serial port closed
May 12 12:59:48 ubuntu modem-manager[532]: (ttyUSB4) closing serial port…
May 12 12:59:48 ubuntu modem-manager[532]: (ttyUSB4) serial port closed
May 12 12:59:48 ubuntu modem-manager[532]: (ttyUSB5) closing serial port…
May 12 12:59:48 ubuntu modem-manager[532]: (ttyUSB5) serial port closed
May 12 12:59:48 ubuntu modem-manager[532]: (ttyUSB6) closing serial port…
May 12 12:59:48 ubuntu modem-manager[532]: (ttyUSB6) serial port closed
May 12 12:59:55 ubuntu modem-manager[532]: (ttyUSB1) closing serial port…
May 12 12:59:55 ubuntu modem-manager[532]: (ttyUSB1) serial port closed
May 12 12:59:55 ubuntu modem-manager[532]: (ttyUSB1) opening serial port…
May 12 12:59:55 ubuntu modem-manager[532]: (ttyUSB0) closing serial port…
May 12 12:59:55 ubuntu modem-manager[532]: (ttyUSB0) serial port closed
May 12 12:59:55 ubuntu modem-manager[532]: (ttyUSB0) opening serial port…
May 12 12:59:58 ubuntu modem-manager[532]: (ttyUSB1) closing serial port…
May 12 12:59:58 ubuntu modem-manager[532]: (ttyUSB1) serial port closed
May 12 12:59:59 ubuntu modem-manager[532]: (ttyUSB0) closing serial port…
May 12 12:59:59 ubuntu modem-manager[532]: (ttyUSB0) serial port closed
May 12 13:00:01 ubuntu modem-manager[532]: (ttyUSB2) closing serial port…
May 12 13:00:01 ubuntu modem-manager[532]: (ttyUSB2) serial port closed
May 12 13:00:01 ubuntu NetworkManager[561]: (ttyUSB3): failed to look up interface index
May 12 13:00:01 ubuntu NetworkManager[561]: b[/b]: new GSM/UMTS device (driver: ‘sierra’ ifindex: 0)
May 12 13:00:01 ubuntu NetworkManager[561]: b[/b]: exported as /org/freedesktop/NetworkManager/Devices/3
May 12 13:00:01 ubuntu NetworkManager[561]: b[/b]: now managed
May 12 13:00:01 ubuntu NetworkManager[561]: b[/b]: device state change: unmanaged → unavailable (reason ‘managed’) [10 20 2]
May 12 13:00:01 ubuntu NetworkManager[561]: b[/b]: deactivating device (reason ‘managed’) [2]
May 12 13:00:01 ubuntu NetworkManager[561]: nm_system_iface_flush_routes: assertion ifindex > 0' failed May 12 13:00:01 ubuntu NetworkManager[561]: nm_system_iface_flush_addresses: assertion ifindex > 0’ failed
May 12 13:00:01 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:00:01 ubuntu NetworkManager[561]: b[/b]: device state change: unavailable → disconnected (reason ‘none’) [20 30 0]
May 12 13:00:01 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:17 ubuntu NetworkManager[561]: Activation b[/b] starting connection ‘Movistar’
May 12 13:02:17 ubuntu NetworkManager[561]: b[/b]: device state change: disconnected → prepare (reason ‘none’) [30 40 0]
May 12 13:02:17 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:17 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:17 ubuntu NetworkManager[561]: Activation b[/b] Stage 1 of 5 (Device Prepare) scheduled…
May 12 13:02:17 ubuntu NetworkManager[561]: Activation b[/b] Stage 1 of 5 (Device Prepare) started…
May 12 13:02:17 ubuntu NetworkManager[561]: Activation b[/b] Stage 1 of 5 (Device Prepare) complete.
May 12 13:02:17 ubuntu modem-manager[532]: b[/b] opening serial port…
May 12 13:02:17 ubuntu modem-manager[532]: Modem /org/freedesktop/ModemManager/Modems/2: state changed (disabled → enabling)
May 12 13:02:28 ubuntu modem-manager[532]: b[/b]: using text mode for SMS
May 12 13:02:28 ubuntu modem-manager[532]: Modem /org/freedesktop/ModemManager/Modems/2: state changed (enabling → enabled)
May 12 13:02:28 ubuntu NetworkManager[561]: WWAN now enabled by management service
May 12 13:02:28 ubuntu modem-manager[532]: Modem /org/freedesktop/ModemManager/Modems/2: state changed (enabled → registered)
May 12 13:02:28 ubuntu modem-manager[532]: Modem /org/freedesktop/ModemManager/Modems/2: state changed (registered → connecting)
May 12 13:02:29 ubuntu modem-manager[532]: Modem /org/freedesktop/ModemManager/Modems/2: state changed (connecting → connected)
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 2 of 5 (Device Configure) scheduled…
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 2 of 5 (Device Configure) starting…
May 12 13:02:29 ubuntu NetworkManager[561]: (ttyUSB3): device state change: prepare → config (reason ‘none’) [40 50 0]
May 12 13:02:29 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 2 of 5 (Device Configure) successful.
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 3 of 5 (IP Configure Start) scheduled.
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 2 of 5 (Device Configure) complete.
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 3 of 5 (IP Configure Start) started…
May 12 13:02:29 ubuntu NetworkManager[561]: (ttyUSB3): device state change: config → ip-config (reason ‘none’) [50 70 0]
May 12 13:02:29 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:29 ubuntu NetworkManager[561]: starting PPP connection
May 12 13:02:29 ubuntu NetworkManager[561]: pppd started with pid 1880
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 4 of 5 (IPv6 Configure Timeout) scheduled…
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 3 of 5 (IP Configure Start) complete.
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 4 of 5 (IPv6 Configure Timeout) started…
May 12 13:02:29 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 4 of 5 (IPv6 Configure Timeout) complete.
May 12 13:02:29 ubuntu pppd[1880]: Plugin /usr/lib/pppd/2.4.5/nm-pppd-plugin.so loaded.
May 12 13:02:29 ubuntu pppd[1880]: pppd 2.4.5 started by root, uid 0
May 12 13:02:29 ubuntu pppd[1880]: Using interface ppp0
May 12 13:02:29 ubuntu NetworkManager[561]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
May 12 13:02:29 ubuntu NetworkManager[561]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
May 12 13:02:29 ubuntu pppd[1880]: Connect: ppp0 ↔ /dev/ttyUSB3
May 12 13:02:29 ubuntu pppd[1880]: CHAP authentication succeeded
May 12 13:02:29 ubuntu pppd[1880]: CHAP authentication succeeded
May 12 13:02:29 ubuntu kernel: [ 608.772962] PPP BSD Compression module registered
May 12 13:02:29 ubuntu kernel: [ 608.784214] PPP Deflate Compression module registered
May 12 13:02:32 ubuntu pppd[1880]: Could not determine remote IP address: defaulting to 10.64.64.64
May 12 13:02:32 ubuntu pppd[1880]: local IP address 10.60.1.168
May 12 13:02:32 ubuntu pppd[1880]: remote IP address 10.64.64.64
May 12 13:02:32 ubuntu pppd[1880]: primary DNS address 200.28.4.130
May 12 13:02:32 ubuntu pppd[1880]: secondary DNS address 200.28.4.129
May 12 13:02:32 ubuntu NetworkManager[561]: PPP manager(IP Config Get) reply received.
May 12 13:02:32 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 5 of 5 (IPv4 Configure Commit) scheduled…
May 12 13:02:32 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 5 of 5 (IPv4 Commit) started…
May 12 13:02:33 ubuntu ntpd[1487]: Listen normally on 6 ppp0 10.60.1.168 UDP 123
May 12 13:02:33 ubuntu ntpd[1487]: peers refreshed
May 12 13:02:33 ubuntu ntpd[1487]: new interface(s) found: waking up resolver
May 12 13:02:33 ubuntu NetworkManager[561]: DNS: starting dnsmasq…
May 12 13:02:33 ubuntu NetworkManager[561]: (ppp0): writing resolv.conf to /sbin/resolvconf
May 12 13:02:33 ubuntu dnsmasq[1934]: started, version 2.59 cache disabled
May 12 13:02:33 ubuntu dnsmasq[1934]: compile time options: IPv6 GNU-getopt DBus i18n DHCP TFTP conntrack IDN
May 12 13:02:33 ubuntu dnsmasq[1934]: using nameserver 200.28.4.129#53
May 12 13:02:33 ubuntu dnsmasq[1934]: using nameserver 200.28.4.130#53
May 12 13:02:33 ubuntu NetworkManager[561]: (ttyUSB3): device state change: ip-config → activated (reason ‘none’) [70 100 0]
May 12 13:02:33 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:33 ubuntu NetworkManager[561]: Unmanaged Device found; state CONNECTED forced. (see bugs.launchpad.net/bugs/191889)
May 12 13:02:33 ubuntu NetworkManager[561]: Policy set ‘Movistar’ (ppp0) as default for IPv4 routing and DNS.
May 12 13:02:33 ubuntu NetworkManager[561]: Activation (ttyUSB3) successful, device activated.
May 12 13:02:33 ubuntu dbus[516]: [system] Activating service name=‘org.freedesktop.nm_dispatcher’ (using servicehelper)
May 12 13:02:33 ubuntu NetworkManager[561]: Activation (ttyUSB3) Stage 5 of 5 (IPv4 Commit) complete.
May 12 13:02:34 ubuntu dbus[516]: [system] Successfully activated service ‘org.freedesktop.nm_dispatcher’

Now I try connect to /dev/ttyUSB3 but don’t work

root@ubuntu:~# minicom --device /dev/ttyUSB3
Device /dev/ttyUSB3 is locked.
root@ubuntu:~#

The /dev/ttyUSB3 is locked when I condected with the network configuration .

Do you know if exist other form for getting that information? (With the ttyUSB5/ttyUSB6 it’s same result ttyUSB4)

---

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB5

Press CTRL-A Z for help on special keys

Sierra Wireless, Incorporated
MC8795V
APP2

OK

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB6

Press CTRL-A Z for help on special keys

Sierra Wireless, Incorporated
MC8795V
APP3

OK

---

Best Regards

[mlw]

The problem you have here is that you are connecting the PPP session using /dev/ttyUSB3 (which has the full parser), you should do it using /dev/ttyUSB4, 5 or 6.

Alternatively you could use DirectIP. On /dev/ttyUSB3 create the profile with the APN you want to use with the at+cgdcont command then send at!scact=1,1, this activates the network interface.

Regards

Matt

[aponce]

Thanks a lot Matt!!! I followed with your indications.

*** For this I down the network-manager service to make changes with minicom on the modem.

---

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB3

Press CTRL-A Z for help on special keys

AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0
OK
ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC8795V
Revision: K2_0_7_46CAP C:/WS/FW/K2_0_7_46CAP/MSM6290/SRC 2010/12/13 22:29:01
IMEI: 355310038197434
IMEI SV: 25
FSN: CHJ2914048310
3GPP Release 6
+GCAP: +CGSM,+DS,+ES

OK
at+cgdcont?
+CGDCONT: 1,“IP”,“bam.clarochile.cl”,“0.0.0.0”,0,0
+CGDCONT: 2,“IP”,“m2m.movistar.cl”,“0.0.0.0”,0,0

at!scact=1,1

In the modem when I send the command (at+cgdcont?) in the memory have 2 config, the first is the correct with the SIM in the modem.

When send the command (at!scact=1,1) the screen is frozen and I can’t sent other command, also I tryed connect with other console for the next ttyUSB4 but had the same result that ttyUSB3 (frozen).

---

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB4

Press CTRL-A Z for help on special keys

ati
ati

---

After this change I can see:

1.- The light of the modem is on and not blinked.

2.- I dont have a new interface + ip (modem):

root@ubuntu:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:01:c0:13:88:b5
inet addr:10.151.185.241 Bcast:10.151.185.255 Mask:255.255.255.0
inet6 addr: fe80::201:c0ff:fe13:88b5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1748716 errors:0 dropped:0 overruns:0 frame:0
TX packets:177946 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:247195062 (247.1 MB) TX bytes:40282535 (40.2 MB)
Interrupt:40 Base address:0x2000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:881 errors:0 dropped:0 overruns:0 frame:0
TX packets:881 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:54594 (54.5 KB) TX bytes:54594 (54.5 KB)

root@ubuntu:~#

I see this page http://mycusthelp.net/SIERRAWIRELESS/_cs/AnswerDetail.aspx?aid=44 and add the command:

1. at+cfun=1
2. at!pcstate=1

---

Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB3

Press CTRL-A Z for help on special keys

AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0
OK
ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC8795V
Revision: K2_0_7_46CAP C:/WS/FW/K2_0_7_46CAP/MSM6290/SRC 2010/12/13 22:29:01
IMEI: 355310038197434
IMEI SV: 25
FSN: CHJ2914048310
3GPP Release 6
+GCAP: +CGSM,+DS,+ES

OK
at+cgdcont?
+CGDCONT: 1,“IP”,“bam.clarochile.cl”,“0.0.0.0”,0,0
+CGDCONT: 2,“IP”,“m2m.movistar.cl”,“0.0.0.0”,0,0

OK
at+cfun=1
OK
at!pcstate=1
ERROR
at!scact=1,1

But the result is the same, maybe this doing something wrong .

Best Regards!