Real experiences with Cellular or modem GSM??

[Alejandro Ruíz Camacho]

Hello.
It wanted to know if using kannel with a modem GSM or a cellular one 
with modem to work with SMS, that problems can be given.
Concretely, if it is a good solution to offer services on the basis of SMS.
Could happen that the modem or cellular nonendurance the amount of SMS. 
 Please, it wanted that experiences compartantan.

Thanks.

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