This is a known problem to Kannel. Kannel, using EMI connection, cannot guarantee DLR matching of messages sent at the same timestamp.
Why? Because it does not compare the MSISDN! It only queries DLR ‘database’, with the timestamp (even that is not in milliseconds) and SMSC. I think there is a patch for this problem (don’t know where). Or if you manage, you can change the Kannel source code, and add the MSISDN to the database query…. Some of these days I will have to do it for myself. And why this haven’t been included in the last release? Because this does not work for all SMSC. Not all of them send back the MSISDN… Hope my explanation was correct! Best Regards, Tiago Rico From: [email protected] [mailto:[email protected]] On Behalf Of Konstantin Vayner Sent: segunda-feira, 14 de Junho de 2010 09:04 To: Kannel Users Subject: DLR matches wrong message Hi everyone, I'm using emi/ucp smsc under kannel 1.4.3. Here's smsc group configuration (sensitive information masked): group = smsc smsc = emi smsc-id = ucp_smsc log-file = "/var/log/kannel/ucp_smsc.log" log-level = 0 host = 1.2.3.4 port = 1234 smsc-username = "678" smsc-password = XYZPWZYX keepalive = 50 idle-timeout = 60 source-addr-autodetect = yes allowed-smsc-id = ucp_smsc flow-control = 1 throughput = 8 The problem is: messages sent on same timestamp mix up in DLRs even though they are sent to different destinations. E.g. sending to X and Y at the same time makes kannel send both DLRs to a dlr-url supplied for X. Here's the log: 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 parsing packet: < 04/00043/R/51/A//0541234567:130610111626/43 > 2010-06-13 11:15:33 [8444] [16] DEBUG: DLR[internal]: Adding DLR smsc=ucp_smsc, ts=130610111626, src=031111111, dst=0541234567, mask=31, boxc= 2010-06-13 11:15:33 [8444] [16] DEBUG: SMSC[ucp_smsc]: creating DLR message 2010-06-13 11:15:33 [8444] [16] DEBUG: SMSC[ucp_smsc]: DLR = http://127.0.0.1/imsc/interfaces/kannel_http/dlr.php?msg_id=32490951&dlr=%d&reason=%A 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: Got packet from the main socket 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 parsing packet: < 73/00239/O/53/678/0541234567/////////////130610111626/1/107/130610111626/3//4D65737361676520666F7220303534343937363830352C2077697468206964656E74696669636174696F6E2031303036313331313136323620686173206265656E206275666665726564/////////////F4 > 2010-06-13 11:15:33 [8444] [16] DEBUG: DLR[internal]: Looking for DLR smsc=ucp_smsc, ts=130610111626, dst=0541234567, type=4 2010-06-13 11:15:33 [8444] [16] DEBUG: DLR[internal]: created DLR message for URL <http://127.0.0.1/imsc/interfaces/kannel_http/dlr.php?msg_id=32490951&dlr=%d&reason=%A> 2010-06-13 11:15:33 [8444] [16] DEBUG: DLR[internal]: DLR not destroyed, still waiting for other delivery report 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 sending packet: < 73/00020/R/53/A///A0 > 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 sending packet: < 05/00376/O/51/0549988770/036532407//1//7///////1306102100//////4/1072/005400530054002D0042005A003A000A05D905EA05E805EA002005E405D905E705D305D505E005D505EA000A05D105E105DA000A0032002C003400330036002C003000350036002E00320032002005E905D7000A00310033002F00300036002000310031003A00310033002000680074007400700073003A002F002F007700770077002E0070////1//////0106050003030201020108///3F > 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: Got packet from the main socket 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 parsing packet: < 05/00043/R/51/A//0549988770:130610111626/46 > 2010-06-13 11:15:33 [8444] [16] DEBUG: DLR[internal]: Adding DLR smsc=ucp_smsc, ts=130610111626, src=032222222, dst=0549988770, mask=31, boxc= 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 sending packet: < 06/00182/O/51/0549988770/036532407///////////1306102100//////4/0304/006100790070006F0061006C0069006D002E0063006F002E0069006C002F00620061006E006B////1//////0106050003030202020108///B4 > 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: Got packet from the main socket 2010-06-13 11:15:33 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 parsing packet: < 06/00043/R/51/A//0549988770:130610111627/48 > 2010-06-13 11:15:33 [8444] [16] DEBUG: SMSC[ucp_smsc]: creating DLR message 2010-06-13 11:15:33 [8444] [16] DEBUG: SMSC[ucp_smsc]: DLR = http://127.0.0.1/imsc/interfaces/kannel_http/dlr.php?msg_id=32490499&dlr=%d&reason=%A **this one is still correct** ... and then, a few seconds later ... 2010-06-13 11:15:46 [8444] [16] DEBUG: EMI2[ucp_smsc]: emi2 parsing packet: < 89/00295/O/53/678/0549988770/////////////130610111626/0/000/130610111638/3//4D65737361676520666F7220303534343937333538352C2077697468206964656E74696669636174696F6E2031303036313331313136323620686173206265656E2064656C697665726564206F6E20323031302D30362D31332061742031313A31363A33382E/////////////A0 > 2010-06-13 11:15:46 [8444] [16] DEBUG: DLR[internal]: Looking for DLR smsc=ucp_smsc, ts=130610111626, dst=0549988770, type=1 2010-06-13 11:15:46 [8444] [16] DEBUG: DLR[internal]: created DLR message for URL <http://127.0.0.1/imsc/interfaces/kannel_http/dlr.php?msg_id=32490951&dlr=%d&reason=%A> **this one went out to a dlr-url of wrong message**
