Hi T,   I have a few of the HUAWEI modems.  I can send you the e156
and e160 if you need to test.  The e156 seems to make four TTYs .
0/1/2/3  I am not sure why this takes place.  I have been asking
HUAWEI for the complete specifications on their modems but they are a
pain about it.   I need the heat and power dissipation as well for
what I am using them for.

AT+CLAC gives a lot of commands but as I am sure you know it is not
easy to figure out what they all mean.  There might be a command that
will change this behavior.   I will let you know if I get a copy of
the specs.

-nxn


On Aug 19, 3:26 pm, Thanasis <[email protected]> wrote:
> Hi,
>
> Just to close this issue, I would like to confirm your findings. I've
> got my hands on a E220 and seems to work like what you've said (dual
> ports etc).
>
> Can you please copy your initial post to the tracker (http://
> code.google.com/p/smslib/issues/list) in order to serve as a reminder
> (and have your name as well)?
>
> Thanks.
>
> On Jul 14, 11:57 pm, bitsmith <[email protected]> wrote:
>
> > When I plug in the Huawei USB stick, two tty devices get generated,
> > usually
> > /dev/ttyUSB0 and /dev/ttyUSB1.
>
> > smslib can be used on either of them - however, it seems that CMTI
> > will
> > only be indicated on the second one (usually /dev/ttyUSB1).
>
> > Apparently, umtsmon (umtsmon.sourceforge.net) knows about this
> > behaviour
> > and I remember to have seen in it's debug log something of using
> > /dev/ttyUSB0 for connection and /dev/ttyUSB1 for control.
>
> > For my test with smslib I have created a small program, that
> > 1) discovers all active ports using
> > CommPortIdentifier.getPortIdentifiers()
> > 2) creates a gateway on each of these ports
> > 3) tries to activate each gateway by adding it to a temporary Service
> > and
> >     starting the service
> > 4) if this is successful,  basic parameters like manufacturer, model
> >      and serial number are read from the gateway. This is used to
> > decide
> >      if the port is a port that is currently occupied by my target
> > device
> > 5) the temporary Service is then stopped and if the port qualified,
> > the
> >     Gateway is added to another (common) Service object.
>
> > After all ports are through, I end up with the common Service object
> > with
> > two Gateways attached. This is the Service, I use for further SMS
> > processing.
> > It will accept the CMTI from whichever port the UMTS stick decides to
> > send it to.
>
> > Even though this type of discovery works for me, I would appreciate to
> > have
> > a function within smslib to do it. Such a function could also be used
> > to select
> > the correct ATHandler based on information read from the device.
>
> > ... but that's only a proposal for enhancement - not strictly
> > necessary.
>
> > On 13 Jul., 18:15, Thanasis <[email protected]> wrote:
>
> > > Hi,
>
> > > Thanks for this - This device is much discussed here.
>
> > > However, I am a bit confused... What do you mean by two ttys??? Do you
> > > mean that smslib is required to manage to ttys for one modem?
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