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Delivery Status Report

Jorgefa asked
Last Modified: 2013-12-09
Hi there,
I am trying to send and receive SMS using a GSM Modem (Siemens TC35i). Now I can send and receive SMS using a Visual Basic program, but I am really not sure if I am doing the things well. Besides that, I need to know if the SMS is sent or not.
Reading I found this settings to get the report:

to send the message I use:
AT+CMGS= PhoneNumber
then wait for the prompt ">"
and then send the message.

And I get always (with corrects phone number and with invalid phone numbers)
+CMGS: Number


Am I using bad parameters? where can I found de delivery report?

Many thanks and sorry for my bad English (I am Spanish)

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