Dear All, Thank you for your replies. We are using kannel 1.4.5 with the following setup: sqlbox -> bearerbox -> smsc and connected in transceiver mode to SMSC. we are inserting into mysql send_sms table for sending. We are working with several SMSC and they where able to provide us with logs clearly showing that they have submitted a DLR to our kannel server and have received ACK from our kannel server. In the example below the final Deliver_sm WE DO NOT see in any of the logs (access or SMSC) once or ever and the DLR is stuck in dlr table with where ts = 150903932114 There aren't any errors in sql box logs (we are using mysql). We do not see any errors in SMSC logs except: "Could not parse DLR string sscanf way, fallback to old way. Please report!" I will reiterate that missing DLRs are happening intermittently about 25% of them are stuck in dlr table, and even with the error above 75% of them still come in normally. Also in the BB logs we have a lot of the following: " sms_router: handling message Routing failed, re-queued " Not sure if it is all connected or not ... Any help would be much appreciated!
here is an example: ( sensitive parts were redacted) Our Submit_sm as logged on our server: 022-03-30 07:11:59 [9] [11] DEBUG: type_name: submit_sm 2022-03-30 07:11:59 [9] [11] DEBUG: command_id: 4 = 0x00000004 2022-03-30 07:11:59 [9] [11] DEBUG: command_status: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: sequence_number: 8513 = 0x00002141 2022-03-30 07:11:59 [9] [11] DEBUG: service_type: "" 2022-03-30 07:11:59 [9] [11] DEBUG: source_addr_ton: 5 = 0x00000005 2022-03-30 07:11:59 [9] [11] DEBUG: source_addr_npi: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: source_addr: "srcaddr" 2022-03-30 07:11:59 [9] [11] DEBUG: dest_addr_ton: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: dest_addr_npi: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: destination_addr: "***********" 2022-03-30 07:11:59 [9] [11] DEBUG: esm_class: 3 = 0x00000003 2022-03-30 07:11:59 [9] [11] DEBUG: protocol_id: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: priority_flag: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: schedule_delivery_time: NULL 2022-03-30 07:11:59 [9] [11] DEBUG: validity_period: NULL 2022-03-30 07:11:59 [9] [11] DEBUG: registered_delivery: 1 = 0x00000001 2022-03-30 07:11:59 [9] [11] DEBUG: replace_if_present_flag: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: data_coding: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: sm_default_msg_id: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: sm_length: 48 = 0x00000030 2022-03-30 07:11:59 [9] [11] DEBUG: short_message: 2022-03-30 07:11:59 [9] [11] DEBUG: Octet string at 0x7ffb08002320: 2022-03-30 07:11:59 [9] [11] DEBUG: len: 48 2022-03-30 07:11:59 [9] [11] DEBUG: size: 50 2022-03-30 07:11:59 [9] [11] DEBUG: immutable: 0 2022-03-30 07:11:59 [9] [11] DEBUG: data: MY 2022-03-30 07:11:59 [9] [11] DEBUG: data: SHORT 2022-03-30 07:11:59 [9] [11] DEBUG: data: MESSAGE 2022-03-30 07:11:59 [9] [11] DEBUG: Octet string dump ends. 2022-03-30 07:11:59 [9] [11] DEBUG: SMPP PDU dump ends. As logged on their server 9:11:59.460 DEBUG @ <SMPP Session-*******:***** - ****> [SMPPServer]: Read PDU [submit_sm seq 8513 status 0] - service_type='' source_addr_ton='5' source_addr_npi='0' source_addr='srcaddr' des t_addr_ton='0' dest_addr_npi='0' destination_addr='*******' esm_class='3', protocol_id='0' priority_flag='0', schedule_delivery_time='', validity_period='', registered_delivery='1', replace_if_present= '0', data_coding='0', sm_default_msg_id='0', short_message='my short message', Their Submit_sm_resp as logged on our server (In dlr talbe there is pending dlr with ts =150903932114 ): 2022-03-30 07:11:59 [9] [11] DEBUG: type_name: submit_sm_resp 2022-03-30 07:11:59 [9] [11] DEBUG: command_id: 2147483652 = 0x80000004 2022-03-30 07:11:59 [9] [11] DEBUG: command_status: 0 = 0x00000000 2022-03-30 07:11:59 [9] [11] DEBUG: sequence_number: 8513 = 0x00002141 2022-03-30 07:11:59 [9] [11] DEBUG: message_id: "150903932114" Their Deliver_sm as logged on their server *which we have no trace of*!: 09:12:07.737 DEBUG @ <pool-4-thread-11> [SMPPServer]: Write PDU [deliver_sm seq 140444686 status 0] - service_type='' source_addr_ton='1' source_addr_npi='1' source_addr='********' dest_addr_ton='0' dest_addr_npi='0' destination_addr='srcaddr' esm_class='4', protocol_id='0' priority_flag='0', schedule_delivery_time='', validity_period='', registered_delivery='0', replace_if_present_flag='0', data_coding='0', sm_default_msg_id='0', short_message='id:150903932114 sub:001 dlvrd:001 submit date:220330091159 done date:220330091203 stat:DELIVRD err: 000 text:DELIVERED', message_state='2' receipted_message_id='150903932114' 09:12:07.792 DEBUG @ <SMPP Session-******:***** - *****> [SMPPServer]: Read PDU [deliver_sm_resp seq 140444686 status 0] - message_id = ''
