On Monday 14 February 2022 at 17:01:09, akamat sarat wrote: > The connection to SMSC is working properly according to kannel logs. > No obvious errors are visible in the logs. > But we are missing delivery reports that SMSC is saying were delivered and > ACKd by kannel. > Specifically they are saying that they have 'CDRs state "Delivered Direct"' > and that kannel ACKd the delivery report.
I would ask your upstream SMSC hoster to send you a copy of the ACK they claim came from kannel - preferably as a packet capture, which you can then compare with your own. After all, you say "there is no ACK" and you cannot investigate something that isn't there. They are saying "there is an ACK", so that is where to start investigating. Antony. -- There's no such thing as bad weather - only the wrong clothes. - Billy Connolly Please reply to the list; please *don't* CC me.