Recommendation for a good Modem

Recommendation for a good Modem

[Markus Hubig]

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Hi @all,

I'm looking for a GPRS/UMTS modem for a small embedded linux
appliance I'm building. I want to use ofono to handle the modem.

First I thought about the Telit GC864, but unfortunately this seems
to be not supported by ofono (at least not out of the box) ...

Is there a good GPRS/UMTS modem you would recommend?

My requirements are:

- MUST: Out-of-the box supported by ofono
- MUST: Connector / No BGA
- MAY: SimCard holder integrated.
- MAY: UMTS
- MAY: GPS Option

Markus

-- 
_______________________________________________________

IMKO Micromodultechnik GmbH
Markus Hubig
Research & Development
Im Stoeck 2
D-76275 Ettlingen / GERMANY

HR: HRB 360936 Amtsgericht Mannheim
President: Dipl.-Ing. (FH) Kurt Koehler

Tel: 0049-(0)7243-5921-26
Fax: 0049-(0)7243-5921-40
e-mail: mhubig(a)imko.de
internet: www.imko.de
_______________________________________________________

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Re: Recommendation for a good Modem

[Denis Kenzior]

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Hi Markus,

On 08/26/2013 04:58 AM, Markus Hubig wrote:
> Hi @all,
>
> I'm looking for a GPRS/UMTS modem for a small embedded linux
> appliance I'm building. I want to use ofono to handle the modem.
>
> First I thought about the Telit GC864, but unfortunately this seems
> to be not supported by ofono (at least not out of the box) ...
>

How different is the GC864 from say UC864?  Supporting the GC864 might 
be as simple as tweaking some parameters inside the relevant modem 
detection plugin.

> Is there a good GPRS/UMTS modem you would recommend?
>
> My requirements are:
>
> - MUST: Out-of-the box supported by ofono
> - MUST: Connector / No BGA
> - MAY: SimCard holder integrated.
> - MAY: UMTS
> - MAY: GPS Option
>

You will probably need to look into modem offerings from Cinterion, 
Option, Telit, Sierra and SimCom.  All have some sort of support inside 
oFono to varying degrees, but likely you will still need to do some 
integration work.

There may be others who can give a more concrete recommendation.

Regards,
-Denis

Re: Recommendation for a good Modem

[Markus Hubig]

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On Sun, Aug 25, 2013 at 7:12 AM, Denis Kenzior <denkenz@gmail.com> wrote:

> Hi Markus,
>
>
> On 08/26/2013 04:58 AM, Markus Hubig wrote:
>
>> Hi @all,
>>
>> I'm looking for a GPRS/UMTS modem for a small embedded linux
>> appliance I'm building. I want to use ofono to handle the modem.
>>
>> First I thought about the Telit GC864, but unfortunately this seems
>> to be not supported by ofono (at least not out of the box) ...
>>
>>
> How different is the GC864 from say UC864?  Supporting the GC864 might be
> as simple as tweaking some parameters inside the relevant modem detection
> plugin.


The GC864 has the same core as the UC864. The main difference is that the
GC864 can only be connected via a serial port / UART. I looked at the
telit.c plugin and it seems indeed that the required modifications are not
that big. Maybe I can make the adaptions ... but I need some Informations.

   1. How do I get ofono to detect the modem on the serial line? Via the
   ofono.rules file and udev.c?

   2. Do I have to define a new moden plugin e.g telit_serial.c or is it
   possible to extend telit.c

Cheers, Markus

-- 
_______________________________________________________

IMKO Micromodultechnik GmbH
Markus Hubig
Research & Development
Im Stoeck 2
D-76275 Ettlingen / GERMANY

HR: HRB 360936 Amtsgericht Mannheim
President: Dipl.-Ing. (FH) Kurt Koehler

Tel: 0049-(0)7243-5921-26
Fax: 0049-(0)7243-5921-40
e-mail: mhubig(a)imko.de
internet: www.imko.de
_______________________________________________________

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