Re: SMPP validity dates and time difference

Hi,

kannel will send validity in utc therefore 00+ is hardcoded.

Thanks,
Alex

Am 06.04.2009 um 16:12 schrieb Hervé Nicol:

> Hello,
>
> I already sent this messages to the "users" mailing list, but I guess
> that was not the right place for such some protocol oriented thoughts.
>
>
>
> SMPP validity dates is specified following this time format:
>
> “YYMMDDhhmmsstnnp”, where:
>
> * ‘nn’ is the Time difference in quarter hours between local time (as
> expressed in the first 13 bytes) and UTC (Universal Time Constant)  
> time
> (00-48).
>
> * 'p' is '+' or '-' depending if local time is retarded or advanced in
> relation to UTC time.
>
>
>
> It seems to me that these parameters are hard coded to "00+" in  
> Kannel.
> Wouldn't it be nice if we could set them from the config file?
>
>
>
>
> On top of that, I've seen the 'R' value as 'p' parameter. I think it's
> a feature starting from SMPP V3.4
> The 'R' value defines a relative validity date. It means you don't  
> care
> anymore about server's timezones or the different servers time offset,
> but just define the how long you want your SMS to be valid.
> For instance, “000000000500000R”, means "5 minutes validity from when
> the SMSC receives the message".
>
> What do you think of this possibility?
>
>
> I currently use relative validity, but our patch replaces the actual
> "full date" behaviour. I guess it breaks compatibility with older SMPP
> gateways.
>
>
> Thanks for your advice.
> -
> Hervé Nicol
>
>
>
>