CODEWITHSUNDEEP
.netweb-servicessms
Ali Foroughi
Ali Foroughi

Reputation: 4629

send and receive SMS and developing a SMS panel

i am working on a SMS panel based on .net framework.i just send some messages to my contacts and received their replies.i want to know witch received message is a reply of witch sent message.

ex : if i send A and B messages to 1 contact and then it sends back to me X and Y messages as its reply ,now how i can find out X is a answer for witch one A or B messages.in other hand,what about Y message?!!

I need some ideas or personal experiences about send and receive SMS and generating a SMS panel.

thanks

Upvotes: 0

Views: 996

Answers (5)

zfou
zfou

Reputation: 921

SMS is stateless, you can't track a 'session' (question and reply) using sms since the user can send back a mobile originated short message without any technical way to link it to a received mobile terminated short messages; and that's why USSD messaging were invented, it is statefull and you can easily track user sessions.

Upvotes: 0

Muhammad Atif Agha
Muhammad Atif Agha

Reputation: 1545

There are different ways to tackle it, you can use ATI commands in .Net for this purpose and use GsmComm.dll library to send message, also PDU knowledge is required, you can also see a ready made library its name is rapidsmsserver and can ask them how did they implement it or if they could give you some developer license free of cost so you can use it in .net and study it. I dont know much about it, and you can also see many other ready made libraries because most of ATI commands are no more working.

Upvotes: 1

Prashant
Prashant

Reputation: 86

Its possible. you are talking about two way sms.

you need to use two different services

one is for sending sms, ie http or smpp(need to use the mobile number as senderid on which the reciever replies)

then on the other hand you need to configure a sim card reader or develop the application to read those messages

then you can easiely relate them.

Upvotes: 1

SiN
SiN

Reputation: 3754

This is not possible. SMS messages are stateless.

Upvotes: 1

Jeremy McGee
Jeremy McGee

Reputation: 25210

SMS is really not very clever: hence its name "short message service".

There's no way to correlate sent messages with replied messages, so I'm afraid you'll need to think of another strategy if this is important to you.

Upvotes: 1

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