Hi,
You input relative validity period. Kannel sends to SMSc absolute GMT + your
input * 60.
BR,
Nikos
----- Original Message -----
From: brett skinner
To: users@kannel.org
Sent: Monday, July 12, 2010 11:39 AM
Subject: Query regarding validity period
Hi All
I read the following in the user guide regarding validity period
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.
Why is it important to have the time synchronized with the SMSC? If for
example I have a message that is sent at 10:00 and I do not want the
receiver to get it past 17:00 then surely I would set the validity flag to
420 (60min * 7 hours)? Looking at the SMPP spec it says that the
validity_period can be specified in either absolute or relative terms. Which
does Kannel do? Also it seems looking at the encoding of the datetime type
it seems that it can specify the difference between local time and UTC.
I am not sure where this leaves me. What is the practice here? Does Kannel
send in local time and give the difference between UTC? Should I setup the
server to use UTC rather or will Kannel take care of all of this for me? Or
is my original thought correct and Kannel will just send the validity period
forward in relative terms i.e. valid for 420 minutes after you receive this
message? Appreciate any guidance that you can give me?
Regards,
