For point 1: It sounds like you get DLR for multipart sms. Note that for multipart messages you receive DLR for each part.
For point 2: You are absolutely correct. Ignore my statement. My bad. BR From: Nanda Kumar P<mailto:nanda.ku...@pelatro.com> Sent: Sunday, April 24, 2016 10:34 AM To: Vangelis Typaldos<mailto:vty...@outlook.com>; users@kannel.org<mailto:users@kannel.org> Subject: RE: Kannel TPS reduces gradually if DLR is used Thank you Vangelis. Few follow up questions though: 1. While I understand the point about the throughput dropping to half, I fail to understand how it went as low as 25 per second. 2. What is the significance of changing the dlr-mask from 3 to 7 or 15? Would it not lower the speeds further as it has to deal with calling the dlr-url for two other flags aside from delivered and undelivered? Thanks & Regards, Nanda From: Vangelis Typaldos [mailto:vty...@outlook.com] Sent: 24 April 2016 12:56 To: Nanda Kumar P; users@kannel.org Subject: RE: Kannel TPS reduces gradually if DLR is used The throughput assigned by your operator/smsc includes DLR activity. So the actual bind throughput would drop to the half you if you request DLR for any MT. I would suggest to raise dlr-mask from 3 to 7 or 15. Kind Regards, Vangelis From: Nanda Kumar P<mailto:nanda.ku...@pelatro.com> Sent: Sunday, April 24, 2016 8:08 AM To: users@kannel.org<mailto:users@kannel.org> Subject: Kannel TPS reduces gradually if DLR is used Hi, I’m using kannel to send SMS to SMSC and in the send-sms url, I’m also using the dlr-mask as 3 (Delivered and undelivered) and providing a dlr-url callback for the same. I have set the throughput as 300/sec. If I do not use the delivery report, the TPS is consistent and close to 300/sec. However, if I do use delivery report with the above said parameters, the TPS starts from 300 but gradually reduces to less than 25 per second. It would be great if someone can tell me what the reason for this could be. Thanks & Regards, Nanda
