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Callback_num Reply number

Posted: Wed Mar 30, 2011 11:12 am
by judicaron
Hi all,

Can someone tell me how to define a reply-to number for a SMS when it is delivered with an alphanumeric sender ID?

For example if the sender ID is "Admin" I would like the recipient to reply to a number "123456".

How can I achieve this? There is an optional parameter "callback_num" in SMPP documentation but I'm not sure of how to use it.

Thanks in advance for your help.