Hi, it's a condition for every time based parameter that server synchronized to NTP. If this not a case it's not our bad.
I don't know reason for switching to absolute time anymore. As to the bug: just imagine, you send message with validity of 1min, kannel try to deliver to SMSC but SMSC is not reachable for 2 min. Then SMSC is reachable again and kannel submits message to SMSC with validity of 1min BUT validity is already expired because we waited for 2 mins for SMSC. Thanks, Alexander Malysh Am 13.12.2010 um 22:19 schrieb Nikos Balkanas: > Hi, > > I was not aware that you were in relative time before. > > The only reason for switching is that it offers greater accuracy than > absolute time. There is no guarantee that SMScs are correctly synchronized to > NTP. Some users seem to objection to this. (or the UG entry). You obviously > had your reasons for switching to absolute time. Could you list them or send > me an email reference? > > In kannel, in SMPP, the validity is correctly converted to calendar date > before sending out. There is no bug, and the resolution in configuration is > perefectly acceptable (seconds are an overkill). > > BR, > Nikos > > ----- Original Message ----- From: "Alexander Malysh" <amal...@kannel.org> > To: "Nikos Balkanas" <nbalka...@gmail.com> > Cc: "Milan P. Stanic" <m...@arvanta.net>; "ishagh ouldbah" > <ishagh...@yahoo.com>; <devel@kannel.org> > Sent: Monday, December 13, 2010 7:29 PM > Subject: Re: Patch: gw/smsc/smsc_smpp.c (Re: syncronize kannel with smsc) > > > Hi, > > I don't see why we have to switch to relative time again. Only bug in kannel > is, that validity is in minutes and not > absolute time. The same bug apply to deferred. > > Thanks, > Alexander Malysh > > Am 27.11.2010 um 09:09 schrieb Nikos Balkanas: > >> I stand corrected. bb sends in, at least in SMPP, absolute time as GMT + >> validity * 60 for validity and scheduled delivery time. Not very safe or >> good. Needs the server to be synchronized with SMSc, which would probably >> mean both have to be ntp synchronized. >> >> This is a defect of the SMPP spec. It defines the format of relative time in >> absolute terms, instead of seconds, making it difficult to calculate and >> reconstruct. >> >> The proposed patch makes smpp work with relative time. Please test, I do not >> have access to an SMSc. Let me know how it goes. I hope that all SMScs >> support it. It is more accurate than absolute time, since it doesn't require >> synchronization between smsc and bearerbox. >> >> Please vote. >> >> BR, >> Nikos >> ----- Original Message ----- From: "Milan P. Stanic" <m...@arvanta.net> >> To: <us...@kannel.org> >> Sent: Monday, November 22, 2010 4:25 PM >> Subject: Re: syncronize kannel with smsc >> >> >>> On Mon, 2010-11-22 at 05:31, ishagh ouldbah wrote: >>>> are you sure? >>> >>> According to SMPP version 3.4 time can be absolute or relative. Absolute >>> time is default. >>> How it is implemented in particular software is another question. I >>> think that the kannel uses absolute time, at least for SMPP. >>> >>> Here is comment from gw/smsc/smsc_smpp.c >>> --------------------------------------------------------- >>> /* >>> * check for validity and defered settings >>> * were message value has higher priiority then smsc config group >>> * value >>> * Note: we always send in UTC and just define "Time Difference" as >>> * 00 and >>> * direction '+'. >>> */ >>> >>> ---------------------------------------------------------- >>> >>>> ________________________________ >>>> From: Nikos Balkanas <nbalka...@gmail.com> >>>> To: ishagh ouldbah <ishagh...@yahoo.com>; us...@kannel.org >>>> Sent: Mon, November 22, 2010 1:00:48 PM >>>> Subject: Re: syncronize kannel with smsc >>>> >>>> Well, UG is wrong there. In the SMSc definitions it states: >>>> >>>> validityperiod integer >>>> >>>> How long the message will be valid, i.e., how long the SMSC will try try >>>> to send >>>> the message to the recipient. Defined in minutes. >>>> >>>> BR, >>>> Nikos >>>> ----- Original Message ----- From: ishagh ouldbah >>>> To: Nikos Balkanas ; us...@kannel.org >>>> Sent: Monday, November 22, 2010 1:31 PM >>>> Subject: Re: syncronize kannel with smsc >>>> >>>> >>>> thans for your reponce >>>> but in SMS Push (send-sms) CGI Variables it is writen in the userguid that >>>> to >>>> use >>>> the variable validity you should syncronize with smsc >>>> contant >>>> Optional. If given, Kannel will >>>> inform SMS Center that it should >>>> only try to send the message for >>>> this many minutes. If the >>>> destination mobile is off other >>>> situation that it cannot receive >>>> the sms, the smsc discards the >>>> message. Note: you must have >>>> your Kannel box time >>>> synchronized with the SMS >>>> Center. >>>> note that i need to specify it for a specified service >>>> regards >>>> >>>> >>>> >>>> >>>> >>>> From: Nikos Balkanas <nbalka...@gmail.com> >>>> To: ishagh ouldbah <ishagh...@yahoo.com>; us...@kannel.org >>>> Sent: Sun, November 21, 2010 4:00:52 PM >>>> Subject: Re: syncronize kannel with smsc >>>> >>>> Hi, >>>> >>>> You don't need to. SMPP protocol works with validity period (relative >>>> time). >>>> Therefore, no absolute time is ever involved and you don't need to >>>> synchronize. >>>> >>>> BR, >>>> Nikos >>>> ----- Original Message ----- From: ishagh ouldbah >>>> To: us...@kannel.org >>>> Sent: Sunday, November 21, 2010 4:18 PM >>>> Subject: syncronize kannel with smsc >>>> >>>> >>>> Hi all, >>>> I want to set validity variable so I need to syncrnize with the smsc >>>> my question is >>>> How can I syncronize kannel box with smsc >>>> regards >>>> >>>> >>>> >>>> >>> >>> -- >>> Kind regards, Milan >>> -------------------------------------------------- >>> Arvanta, IT Security http://www.arvanta.net >>> Please do not send me e-mail containing HTML code. >> <smsc_smpp.diff> >
