You can use the max-error-count parameter and reset-string parameters in modem config in order to have kannel restart the modem automatically after error-count errors. Check user guide for details.
|-----------------------------------------------------------------------------------------------------------------| Envíe y Reciba Datos y mensajes de Texto (SMS) hacia y desde cualquier celular y Nextel en el Perú, México 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 Wed, Apr 6, 2011 at 3:39 AM, Per von Zweigbergk <[email protected]> wrote: > (This question is a re-post, I posted it on March 28 but did not get > any responses. Hopefully this time possibly somebody who can answer > the question will notice it.) > > We're currently running an install of Kannel 1.4.3-0ubuntu2 (as > installed from the Ubuntu respositories) with a Multi-Tech MTCBA-G-F4 > (http://www.multitech.com/en_US/products/families/multimodemgprs/) > running to deliver SMS messages. > > We've experienced twice so far over a few months (rarely) that the modem > appears to lose connectivity to the GSM operator. This is what happens > then (the SMS PDU has been redacted for confidentiality reasons) > > 2011-03-25 08:58:06 [14228] [8] DEBUG: boxc_receiver: sms received > 2011-03-25 08:58:06 [14228] [8] DEBUG: send_msg: sending msg to box: > <127.0.0.1> > 2011-03-25 08:58:08 [14228] [6] DEBUG: AT2[multitech-modem-1]: > TP-Validity-Period: 24.0 hours > 2011-03-25 08:58:08 [14228] [6] DEBUG: AT2[multitech-modem-1]: --> > AT+CMGS=50^M > 2011-03-25 08:58:08 [14228] [6] DEBUG: AT2[multitech-modem-1]: <-- > > 2011-03-25 08:58:08 [14228] [6] DEBUG: AT2[multitech-modem-1]: send > command status: 1 > 2011-03-25 08:58:08 [14228] [6] DEBUG: AT2[multitech-modem-1]: --> > [redacted] > 2011-03-25 08:58:08 [14228] [6] DEBUG: AT2[multitech-modem-1]: --> ^Z > 2011-03-25 08:58:09 [14228] [6] DEBUG: AT2[multitech-modem-1]: <-- > > 2011-03-25 08:58:09 [14228] [6] DEBUG: AT2[multitech-modem-1]: <-- ERROR > 2011-03-25 08:58:09 [14228] [6] ERROR: AT2[multitech-modem-1]: Generic > error: ERROR > 2011-03-25 08:58:09 [14228] [6] DEBUG: AT2[multitech-modem-1]: send > command status: -1 > > At this point, a restart of Kannel is not sufficient to get SMS delivery > working again. What I've had to do is to shut down Kannel, then use > Minicom to send an "AT+CFUN=1" command to the modem. This command is > used to perform a reset on the modem, as per the documentation available > from Multitech at > http://www.multitech.com/en_US/DOCUMENTS/Collateral/manuals/S000293J.pdf > (page 16). > > Now, this is a pain to have to do manually, so ideally what I'd like to > do is to make it so that Kannel will automatically restart the modem if > it runs into any difficulty. Adding AT+CFUN=1 to the modem > initialization string should mean that the modem is automatically > restarted whenever Kannel is (I have not tested this...) but that only > solves half the problem - the other half is to automatically > re-initialize the modem whenever there's an ERROR like that. > > Is there any convenient way to do this, perhaps I'm running an > antiquated version of Kannel and this functionality already exists in a > later version? Or is the only way to change this behaviour to change the > AT2 driver itself? > >
