Ill do this tomorrow and let you know further results, I think that this is going to be related to equipment/sim buffering.
Thank you so much for your help, it has been very helpful. Regards. From: Alvaro Cornejo [mailto:cornejo.alv...@gmail.com] Sent: Friday, September 05, 2014 8:00 AM To: Vinicio Cruz Cc: users Subject: Re: Receiveing same sms two or 3 times Hi Vinicio There are 2 ways kannel can receive MO messages: - Modem pushes MO to kannel as soon as a message arrives. This is done with CNMI command. Some modems/phones does not support this command. Mostly Nokia. - Kannel search periodically for messages in modem memory. This is done with sim-buffering config directive. There seems to be a problem with your modem firmware(?) where when retrieving and sms and there is another sms incoming it drops the call or does not notify kannel that the transaction has ended; thus kannel thinks message retrieval has failed and does not delete the message from memory and in the next memory check it will find the same message. Does all your modems have the same issue? Are they the same brand/firmware version? There are a couple of things you can do: - Configure CNMI command along with sim-buffering. I use this setup because sometimes CNMI fails and messages stays on sim. Then, if the memory fills up, the modem stop receiving any message. It has worked fine for me. - Try to fine tune your modem setup. Check kannel directives for handshake and a sleep-time between lines/commands for the modem. - Try to use equipment buffering instead of sim buffering. You need to configure this on kannel and your modem.... if the later allows it. Hope helps Alvaro |--------------------------------------------------------------------------- --------------------------------------| 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.com On Thu, Sep 4, 2014 at 6:08 PM, Vinicio Cruz <vinicio.c...@gmail.com> wrote: Sorry, forgot to CC the group. From: Vinicio Cruz [mailto:vinicio.c...@gmail.com] Sent: Thursday, September 04, 2014 4:34 PM To: 'Alvaro Cornejo' Subject: RE: Receiveing same sms two or 3 times Did the test as you ask and everything ok no duplicated before or after. But now there is another twist while testing, I sent an sms while the modem was sending messages (20 aprox.) and then the message was received 4 times, seems to happened when there is traffic in the modem, messages are received 2, 3 and up to 11 times. I remember now that before we didnt use sim-buffering neither configured the SM storage (I think this is the default) and this didnt happen, after the new settings this problem stared. What do you think about it?. From: Alvaro Cornejo [mailto:cornejo.alv...@gmail.com] Sent: Thursday, September 04, 2014 3:52 PM To: Vinicio Cruz Cc: users Subject: Re: Receiveing same sms two or 3 times Hi Looks like kannel is able to see the pending message, retrieve it, but fails on decoding if and then fails the process and does not delete it from modem memory. Can you do the following: shut the related smsc-at connection on kannel connect to it with a terminal program like minicom enter commands at+cmgl to list messages in memory at+cmgr=n to retrieve message on memory location n as shown with previous command. Check that there is no problems with the message. at+cmgd=n to delete the mentioned message from memory atz to reset modem to factory defaults. power off then on the modem. send a sms to the modem, then use the same procedure above to check that the msg arrived correctly if so, disconnect minicom and restart smsc-at on kannel. see if kannel can retrieve the message. Hope this helps. It might be that the message in location 1 got corrupted somehow. Does this happens with all messages? and in different memory locations? Regards Alvaro |--------------------------------------------------------------------------- --------------------------------------| 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.com On Thu, Sep 4, 2014 at 3:36 PM, Vinicio Cruz <vinicio.c...@gmail.com> wrote: Thanks for your response Alvaro, this is a extract from the bearerbox: "fb43beb4-df37-4d58-958f-a8ecce10b176","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "0658bf9c-53f7-40cb-a8f6-b33d958c2c88","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "801daaf0-bd01-42a8-af38-6c299c302b15","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "fc85117a-9cbb-42d0-a3a3-8666fc5808df","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "011b26f4-efae-4b40-a4a4-7c12d8683a5a","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "aaccd45f-3c67-41d8-a5dd-51973cc4f92a","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "fd39d8c7-6020-4f95-9c25-eedb91c2249d","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "8151edc9-94c2-4f86-893c-dac55db53c75","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta "e286537f-616e-4728-a756-7f16a323568f","2014-09-03 07:03:25","Receive SMS","modem-5-telca","","","+50250500880","51051500","0",Se supone que me lo debitan de mi cuenta This is a extract from the modem log, the error 321 goes from index 2 thru 35 wich is the slots available: 2014-09-04 09:09:18 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGS=120^M 2014-09-04 09:09:19 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- > 2014-09-04 09:09:19 [19991] [10] DEBUG: AT2[modem-5-telca]: send command status: 1 2014-09-04 09:09:19 [19991] [10] DEBUG: AT2[modem-5-telca]: --> 0011000881457529010000007BC72C75F8744EABCDA76E282F93D3F4374818768FDFA0A3890A 020DDF6E7ADA5D76D3C36CD0F8ED06BDE1E334C20D0A83E46577F9FC1EA7C3721768F876CFEB 6C7A780E62B3C3EDB01C1 4668362B7180E54C6D35D201B4D7693B140369A2C7663816CB4582DC702D96830DC0D 2014-09-04 09:09:19 [19991] [10] DEBUG: AT2[modem-5-telca]: --> ^Z 2014-09-04 09:09:20 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- > 2014-09-04 09:09:20 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- OK 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMGS: 79 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: send command status: 0 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- OK 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CPMS?^M 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CPMS: "SM",1,35,"SM",1,35 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- OK 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: 1 messages waiting in memory 2014-09-04 09:09:23 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGR=1^M 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMGR: 1,,54 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- 06910562909984040B910552500088F000004190409030524A28D332685E87BFDD6550BC5E06 B5CB20F61B442E8BD3F4B01B442E83DA69D0B85E76D3C3 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: received message from SMSC: +5026099948 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: Numeric sender (international) <+50250500880 <tel:%2B50250500880> > 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: User data length read as (40) 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: Udh decoding done len=40 udhi=0 udhlen=0 udh='' 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- OK 2014-09-04 09:09:24 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- OK 2014-09-04 09:09:30 [19991] [10] DEBUG: AT2[modem-5-telca]: failed to get message 1. 2014-09-04 09:09:30 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGR=2^M 2014-09-04 09:09:31 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMS ERROR: 321 2014-09-04 09:09:31 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: +CMS ERROR: 321 2014-09-04 09:09:31 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: The memory/message storage index assigned to the AT command is invalid (321) 2014-09-04 09:09:31 [19991] [10] DEBUG: AT2[modem-5-telca]: failed to get message 2. 2014-09-04 09:09:31 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGR=3^M 2014-09-04 09:09:31 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMS ERROR: 321 2014-09-04 09:09:31 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: +CMS ERROR: 321 2014-09-04 09:09:31 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: The memory/message storage index assigned to the AT command is invalid (321) 2014-09-04 09:09:31 [19991] [10] DEBUG: AT2[modem-5-telca]: failed to get message 3. 2014-09-04 09:09:31 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGR=4^M 2014-09-04 09:09:32 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMS ERROR: 321 2014-09-04 09:09:32 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: +CMS ERROR: 321 2014-09-04 09:09:32 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: The memory/message storage index assigned to the AT command is invalid (321) 2014-09-04 09:09:32 [19991] [10] DEBUG: AT2[modem-5-telca]: failed to get message 4. 2014-09-04 09:09:32 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGR=5^M 2014-09-04 09:09:32 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMS ERROR: 321 2014-09-04 09:09:32 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: +CMS ERROR: 321 2014-09-04 09:09:32 [19991] [10] ERROR: AT2[modem-5-telca]: +CMS ERROR: The memory/message storage index assigned to the AT command is invalid (321) 2014-09-04 09:09:32 [19991] [10] DEBUG: AT2[modem-5-telca]: failed to get message 5. 2014-09-04 09:09:32 [19991] [10] DEBUG: AT2[modem-5-telca]: --> AT+CMGR=6^M 2014-09-04 09:09:33 [19991] [10] DEBUG: AT2[modem-5-telca]: <-- +CMS ERROR: 321 Tell me if you need something else, thanks in advance for your help. From: Alvaro Cornejo [mailto:cornejo.alv...@gmail.com] Sent: Thursday, September 04, 2014 7:39 AM To: Vinicio Cruz Cc: users Subject: Re: Receiveing same sms two or 3 times Can you post some logs? Some times this happens when there is a coverage issue and the mobile is not able to send the ack to the smsc or when the sim in full and the smsc tries to resend the message. Regards Alvaro |--------------------------------------------------------------------------- --------------------------------------| 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.com On Wed, Sep 3, 2014 at 5:55 PM, Vinicio Cruz <vinicio.c...@gmail.com> wrote: Hi everyone, I wonder if someone have had this problem/behavior. Kannel receiving sms two or even tree to four times the same message using modems, my configuration use message-storage = "SM" and sim-buffering = true, Ive read the manual about this two but havent understand them very well. Im using svn-r5104 on linux, modems Wavecom based. Hope some one can help me. Vinicio.
