[Gta04-owner] broken gta04-please see you mail nikolaus
sanctuarys3172 at yahoo.com
Fri Feb 17 20:35:16 CET 2012
Please see you mail nikolaus,i will be returning my gta04 for replacement for a working item.
From: Marcel Holtmann <marcel at holtmann.org>
To: List for communicating with real GTA04 owners <gta04-owner at goldelico.com>
Sent: Friday, February 17, 2012 4:41 PM
Subject: Re: [Gta04-owner] Modem crashing?
> >> >> I think Radek's approach to monitor the PCM clock - which is only active
> >> >> during a (single) voice call - can address this. It may of course miss
> >> >> some signalling with a second call coming in during a first one
> >> >> (GSM conference calls).
> >> >
> >> > In fact i am now also doing CLCC polling in QtMoko. I will try to collect
> >> > numbers during weekend on how long talk time we have:
> >> >
> >> > 1/ with CLCC polling + routing audio
> >> > 2/ audio routing without CLCC
> >> > 3/ without audio and CLCC polling
> >> >
> >> > We can then decide what to do next.
> >> >
> >> > Btw if you write another mail to Option it would be nice to ask them if they
> >> > know how to disable 3G (if that is possible). I am quite sure the USB
> >> > disconnect is because of that.
> >> I'm pretty sure this works the same way as in any device:
> >> AT+CFUN
> >> where CFUN=5 is GSM and CFUN=6 UMTS
> > that is just specific to Ericsson MBM and ST-Ericsson hardware. That is
> > nowhere near a standard. Time to read 27.007 ;)
> > Option uses AT_OPSYS in their HSO based devices.
> You're right, it's not standard, so it probably is wise to use OPSYS for it.
> However, it does actually work on all devices I've ever seen,
> including every Qualcomm based, from Huawei to Option. So at least it
> does the job for quick testing :)
I don't know how you are doing your testing, but you are wrong here. For
Huawei CFUN=5 means something totally different. And it does not switch
to GSM only. It will actually fully disconnect you from any network.
Just as a hint, Huawei uses AT^SYSCFG for RAT and band selection.
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