Thanks Robban and Rego,
I should be more precise. I'm a little idea as to use a GSM modem to dial and send SMS messages but I wish more.
My idea is to have 1 to 4 TV cameras conected to a hub and through a microcontroller to control the hub (you know, to switch among the four cameras, probably move them, etc.) and the possibility to send the video trough the GSM module to a mobile phone.
Which are my troubles?:
1.- A GSM modem can transmit video and/or images?
2.- What kind of mobile phones can receive video and/or images? (My current mobile cand receive images
)
3.- Are there different bands for mobile phones according with the capacity to receive video? (I've seen some figures as 900/1800 MHz but I don't know what's that)
As you see, I need you tell me some links to begin to learn.
Thanks,