Querry Modem: Data Call, SMS Call and Voice Call

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Daniz40

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Hi All,
I havent used a GSM Modem yet and I have to use in it my project
PLz can somebody tell me what is an SMS Call, Data Call and Voice Call??
And what is the difference between them??
Thanks
 

how can i connect the credit card terminal to gsm with pstn interface
 

SMS call - sending and receiving SMS
Data Call - data connection for browsing web page, sending/receiving email and other Interner activity
Voice Call - Voice conversation
 

Hi

Data call may be a circuit switched data call and may be packet switched data call "GPRS or EDGE and may be UMTS"

Salam
Hossam Alzomor
www.i-g.org
 

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