Define a "reply to" number

.NET library for SMPP protocol
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judicaron
Posts: 2
Joined: Tue Feb 15, 2011 9:23 pm

Define a "reply to" number

Post by judicaron » Wed Feb 16, 2011 9:52 am

Hi all,

I'm able to send SMS with alphanumerical sender ID (by setting source TON to 5). What I want to do now is to have a "reply to" number automatically from the received SMS. For instance my sender ID is "Lisa" and when the user wants to reply to this SMS, I want "123456789" to be the number who will receive the reply.

How can I achieve this? I've tried to use optional parameter "callback_num" but I'm not sure of how to use it.

Thanks in advance for your help.
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