Patch: gw/smsc/smsc_smpp.c (Re: syncronize kannel with smsc)

[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.

Please vote.

BR,
Nikos

To: <us...@kannel.org>
Sent: Monday, November 22, 2010 4:25 PM
Subject: Re: syncronize kannel with smsc

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. ----- Original Message ----- From: "Milan P. Stanic" <m...@arvanta.net>

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


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

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,



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

How long the message will be valid, i.e., how long the SMSC will try try to send but in SMS Push (send-sms) CGI Variables it is writen in the userguid that to 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.

--
Kind regards,  Milan
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smsc_smpp.diff
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