before asking questions, i always search in the forum but searching tool is very bad and doesnt give me any result anyway.
i have a problem with fastrack supreme 20, OAT 663g00 v4.25.01 inside. My application works well for days but sometimes it get stucks, freezes and stop responding any command.
when i dial the number outside, it doesnt give me response that means sim is not active that time. this happens rare and modems are far away from us so we can not test why it hangs.
i want to know any idea about modem freezings. can there be any software or hardware problem that hangs the modems?