I've created an app to send sms-messages to GSM-Modules for configuring.
I'm using PhoneSMS to send them and check the deliverystate via PhoneEvents.
Anything worked as epected.
Now I had one customer who tried to send a sms under very bad conditions,
he said he had a bad connection to the mobile-provider where he was.
Whenever he tried to send a sms with my app, he got a generic failure as response.
Doing it directly with his phone, any sms was delivered flawlessly (but slowly...).
I'm a little bit confused now, shouldn't it be directly the same?
Or is there some kind of internal timeout for the confirmation?