[Gta04-owner] Detect Call Hangup / Option Datasheet

Marcel Holtmann marcel at holtmann.org
Sat Feb 4 19:08:23 CET 2012

Hi Radek,

> > So yes, there is nothing needed that is not upstream and though I
> > haven't tested upstream due to a lack of hardware yet, I would assume
> > everything works.
> Btw what about the hangup detection? I can detect hangup by read errors from 
> umts alsa recording device, but is there any more reliable/convenient way?

you need to poll CLCC every 500 milliseconds or so to get the actual
call status. This modem is fundamentally not a modem you would use in a



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