Thanks Mads. I already tried this, but the problem that I am facing is that the app needs to read the DLR sent by SMSC. SMSC sends 'DLR=Delivered' if the handset is on. But SMSC does not send any DLR at all if the handset is off or out of coverage. Thats the only issue I am having. Any solution for this?
Also, can I get the table for the all possible values of PID and what can we do playing around with them? Thanks! On Fri, May 13, 2011 at 12:56 PM, Mads N. Vestergaard <m...@coolsms.com>wrote: > Hi Hamza, > > You can send a SMS with a special PID to generate a silent SMS. > > We are adding pid=64 to the HTTP request, to do this. > > But please be aware that not all gateways supports this. > > Regards, > > Mads > > Den 13/05/2011 kl. 09.51 skrev ha...@aeon.pk: > > > Dear friends, > > > > How to send a silent SMS via kannel? My purpose is to check the status of > the mobile (ON/OFF) without bothering the customer by any pop-up/SMS > messages. > > > > Regards, > > > > Hamza > >