Hi, For the case where you are not getting the DLRs, you need to check with operator. It's a painful troubleshooting because in huge volume of SMS traffic, operators don't like to take traces for a single SMS. But they would ask for tcpdump from your side, and you should take one. One thing: Are you using multiple instances of same SMPP account? This is a classical DLR vanishing issue I faced, until I figured out the problem. You should stop using multiple accounts of same SMPP connection and then check DLRs.
You cannot really do anything on EXPIRED messages. One tweak is to identify undelivered messages at programming level, set a threshold counter of 3 for such messages, and re-attempt the submission. But this needs to be done at programming level, kannel cannot do this. On Fri, Oct 23, 2015 at 6:40 PM, Achyut Raj <de...@bongolive.co.tz> wrote: > Hi Hamza, > > Thanx for your reply, > > 1) targeting wrong subscriber number format : This is not the case of > wrong subscribers number issue and wrong number format. All of them > delivered correctly but some of them are not able to get DLR, other DLR are > correct. > 2) your target numbers are churned out/closed : message is delivered but > DLR not receiving in sometime for the same mobile number. > 3) EXPIRED means either the SMSC threshold for storing UNDELIVERED is too > small, : Can you please clearify ?? Do I need to change some configurations > ?? > > > On Fri, Oct 23, 2015 at 3:40 PM, ha...@aeon.pk <ha...@aeon.pk> wrote: > >> Too many UNDELIVERED means either you are targeting wrong subscriber >> number format, or your target numbers are churned out/closed. EXPIRED means >> either the SMSC threshold for storing UNDELIVERED is too small, or you are >> targeting people who do not turn on their cellphones frequently, or have >> severe network issues in that area. Ask your operator why is this happening. >> >> On Wed, Oct 21, 2015 at 4:51 PM, Jffj tjf <trpthp...@gmail.com> wrote: >> >>> This might be. Caused by many issues. You can ask telecom provider to >>> provide all error codes with descriptions. >>> On Oct 21, 2015 4:56 PM, "Achyut Raj" <de...@bongolive.co.tz> wrote: >>> >>>> Hello Group, >>>> >>>> Our client is having issue on receiving DLR. Log stats shows something >>>> like ; >>>> >>>> 0.00% :UNDELIV Err:001 >>>> 0.14% :EXPIRED Err:013 >>>> 0.90% :UNDELIV Err:020 >>>> 0.08% :UNDELIV Err:022 >>>> 1.14% :UNDELIV Err:029 >>>> 0.03% :EXPIRED Err:036 >>>> 0.33% :EXPIRED Err:045 >>>> 0.05% :UNDELIV Err:053 >>>> 0.14% :EXPIRED Err:075 >>>> 11.19% :UNDELIV Err:084 >>>> 0.00% :UNDELIV Err:098 >>>> 4.13% :UNDELIV Err:099 >>>> >>>> What misconfiguration or other issue can cause this much failure >>>> delivery ?? >>>> >>> >> >
