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SMSTools3 Community » Help and support Bottom

SMS identifcation

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Author Post
Oct 2012
Location: Austria
Operating system name and version: Ubuntu 10.04
Version of smsd: 3.1.6
Smsd installed from: Ubuntu repository
Name and model of a modem / phone: siemens t35i
Interface: serial


I have built an email2sms gateway with postfix and smstools. It would be
very nice to make the system not only to send mails->sms out but to send
incoming sms to the appropriate sender of the origin sms.

So my question is, is there a way to give an outgoing sms an unique number
that would be returned by the mobilephone of the receiver so it is possible
to send an incoming sms to the origin sender (via mail)?


Oct 2010
Location: New Caledonia

No, the GSM protocol doesn't allow any field to be 'pre-filled' (except DA) by replying to a SMS.

Aug 2014
Location: Switzerland
Hi, I'm on the same path...
@electronico_nc , I couldn't resolve what "DA" means. Thanks for lighten this up!

I once came accross a strange behaviour that a local phone number I called had way more than the usual official x digits, in Switzerland.
Leaving me to the theory that the extra numbers were for processing by the receiver, probably a switching computer, an thus were handed over by the carrier.

Has any of you heard of this, to add more numbers as a suffix?
I mean, could be a dirty hack.
If so, there's a chance to add an id to the senders number, and a reply would work still.


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