Thanks to all for your attention and consideration. I did set the init-string to AT+CMEE=1 but the problem still happened. Once it happened, I could not find any error message reported by the modem.
I guessed there was something wrong with the serial connection. Because the logs showed that any messages sent by kannel to the modem were echoed back. I then set keepalive to 60 seconds with the hope that kannel could detect the broken link and reset it. However, the problem still happened. After that I changed the keepalive-cmd to "AT+CMEE=1" and it has been working good since then. As I am new to this area. I have no idea about kannel, sms, and AT commands. These trying was done without any guidance. If you find any root cause of the issue based on the described symtomp, please share with me. Thanks Thai 2010/4/22 Nikos Balkanas <nbalka...@gmail.com> > Hi, > > Please read User's guide about modem initialization on how to configure > CMEE. If still having problems, please post your configuration with CMEE. > > BR, > Nikos > ----- Original Message ----- From: Thai Pham > To: Alvaro Cornejo ; users@kannel.org > Sent: Monday, April 19, 2010 6:13 PM > Subject: Re: My kannel system did not work properly after about 1 day > > > > Hi Alvaro, > > It's a prepaid sim but I've just bought it recently so the balance is still > very good. I did try to add CMEE=1/2 to the init-string but the modem > didn't > show any difference. Once I restarted kannel, everything worked normally. > The messages that had been stuck in the queues were delivered successfully > since then. > > I noticed that once the error happened, the logs displayed what were sent > to > the modem: > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: TP-Validity-Period: > 24.0 hours > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> AT+CMGS=19^M > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- AT+CMGS=19> > <------------------------------------------- > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command > status: > 1 > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> > 0011000A8190800299270000A70661F1985C3603 > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> ^Z > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- ERROR > 2010-04-16 14:35:47 [30152] [6] ERROR: AT2[/dev/ttyS0]: Generic error: > ERROR > 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command > status: -1 > ... > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: TP-Validity-Period: > 24.0 hours > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> AT+CMGS=19^M > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > 0011000A8190800299270000A70661F1985C3603 AT+CMGS=19> > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command > status: > 1 > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> > 0011000A8190800299270000A70661F1985C3603 > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> ^Z > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- ERROR > 2010-04-16 14:36:49 [30152] [6] ERROR: AT2[/dev/ttyS0]: Generic error: > ERROR > 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command > status: -1 > > I guess Kannel lost the serial connection to the modem somehow. I wish if > there could be more debug information from Kannel. > > Thanks, > Thai > > > > On Mon, Apr 19, 2010 at 9:37 PM, Alvaro Cornejo <cornejo.alv...@gmail.com> > wrote: > > if it is a prepaid sim, do you have balance? > > add AT+CMEE=1 or 2 to modem string to see get more verbose modem > error and repost. > > > Regards > > Alvaro > > |-----------------------------------------------------------------------------------------------------------------| > Envνe y Reciba Datos y mensajes de Texto (SMS) hacia y desde cualquier > celular y Nextel > en el Perϊ, Mιxico y en mas de 180 paises. Use aplicaciones 2 vias via > > SMS y GPRS online > Visitenos en www.perusms.NET www.smsglobal.com.mx y > www.pravcom.com > > > > > On Mon, Apr 19, 2010 at 2:31 AM, Thai Pham <thai...@gmail.com> wrote: > >> Dear all, >> >> Have any of you experienced this problem? I'm still struggling to get it >> solved. >> >> Regards, >> Thai >> >> On Fri, Apr 16, 2010 at 3:06 PM, Thai Pham <thai...@gmail.com> wrote: >> >>> >>> Hi everybody out there, >>> >>> I've been trying to configure a system to send SMS using Kannel with a >>> Wavecom GSM modem. I used the basic configuration which comes with the >>> package and I could get the system up and running. I cound send SMS >>> messages >>> to my cell phone successfully. However, the system did not work well if I >>> left it running overnight. If I reset the system, everything went back to >>> normal. I enabled debug logging but could not find a cause for the issue. >>> I'm totally new to Kannel so I actually don't know which parts of the >>> logs I >>> should post here. Below are the logs when the SMS could be sent >>> successfully >>> and the other logs when it failed: >>> >>> 2010-04-15 17:29:14 [30152] [7] DEBUG: clear_old_concat_parts called >>> 2010-04-15 18:00:01 [30152] [13] DEBUG: boxc_receiver: sms received >>> 2010-04-15 18:00:01 [30152] [13] DEBUG: send_msg: sending msg to box: >>> <127.0.0.1> >>> 2010-04-15 18:00:03 [30152] [6] DEBUG: AT2[/dev/ttyS0]: >>> TP-Validity-Period: 24.0 hours >>> 2010-04-15 18:00:03 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> AT+CMGS=19^M >>> 2010-04-15 18:00:03 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > >>> 2010-04-15 18:00:03 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command >>> status: 1 >>> 2010-04-15 18:00:03 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> >>> 0011000A8190800299270000A70661F1985C3603 >>> 2010-04-15 18:00:03 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> ^Z >>> 2010-04-15 18:00:05 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > >>> 2010-04-15 18:00:05 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- +CMGS: 63 >>> 2010-04-15 18:00:05 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- OK >>> 2010-04-15 18:00:05 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command >>> status: 0 >>> 2010-04-15 18:29:12 [30152] [7] DEBUG: clear_old_concat_parts called >>> ... >>> 2010-04-16 11:28:51 [30152] [7] DEBUG: clear_old_concat_parts called >>> 2010-04-16 12:28:50 [30152] [7] DEBUG: clear_old_concat_parts called >>> 2010-04-16 13:28:48 [30152] [7] DEBUG: clear_old_concat_parts called >>> 2010-04-16 14:28:47 [30152] [7] DEBUG: clear_old_concat_parts called >>> 2010-04-16 14:35:46 [30152] [13] DEBUG: boxc_receiver: sms received >>> 2010-04-16 14:35:46 [30152] [13] DEBUG: send_msg: sending msg to box: >>> <127.0.0.1> >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: >>> TP-Validity-Period: 24.0 hours >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> AT+CMGS=19^M >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- AT+CMGS=19> >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command >>> status: 1 >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> >>> 0011000A8190800299270000A70661F1985C3603 >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> ^Z >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- ERROR >>> 2010-04-16 14:35:47 [30152] [6] ERROR: AT2[/dev/ttyS0]: Generic error: >>> ERROR >>> 2010-04-16 14:35:47 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command >>> status: -1 >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: time to sleep 30.00 >>> secs. >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: gwlist_len = 1 >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:35:47 [30152] [7] DEBUG: sms_router: time to sleep 30.00 >>> secs. >>> 2010-04-16 14:36:17 [30152] [7] DEBUG: sms_router: gwlist_len = 1 >>> 2010-04-16 14:36:17 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:36:17 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:36:17 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:36:17 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:36:17 [30152] [7] DEBUG: sms_router: time to sleep 30.00 >>> secs. >>> 2010-04-16 14:36:47 [30152] [7] DEBUG: sms_router: gwlist_len = 1 >>> 2010-04-16 14:36:47 [30152] [7] DEBUG: sms_router: handling message >>> (0x9e1b250 vs 0x9e1b250) >>> 2010-04-16 14:36:47 [30152] [7] DEBUG: Message routed successfully. >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: >>> TP-Validity-Period: 24.0 hours >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> AT+CMGS=19^M >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- >>> 0011000A8190800299270000A70661F1985C3603 AT+CMGS=19> >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command >>> status: 1 >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> >>> 0011000A8190800299270000A70661F1985C3603 >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: --> ^Z >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- > >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: <-- ERROR >>> 2010-04-16 14:36:49 [30152] [6] ERROR: AT2[/dev/ttyS0]: Generic error: >>> ERROR >>> 2010-04-16 14:36:49 [30152] [6] DEBUG: AT2[/dev/ttyS0]: send command >>> status: -1 >>> 2010-04-16 14:36:49 [30152] [7] DEBUG: sms_router: handling message >>> (0xb4100558 vs 0xb4100558) >>> 2010-04-16 14:36:49 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> 2010-04-16 14:36:49 [30152] [7] DEBUG: sms_router: handling message >>> (0xb4100558 vs 0xb4100558) >>> 2010-04-16 14:36:49 [30152] [7] DEBUG: re-queing SMS not-yet-to-be resent >>> >>> I hope that some of you could help me resolve this issue. >>> >>> Thanks, >>> Thai >>> >>> >> >> >
