patch: Premicell support

[Jonas Berlin]

Hi!

I have a Nokia Premicell (AT+CGMM -> 0301) phone *), but I failed to send  
& receive messages using gnokii.. After many hours of hacking, testing and  
so on, I managed to find out how to send & receive messages. The premicell  
simply does not consider the SMSC information to be a part of the message.  
The "AT" driver in gnokii however expects & adds this information by  
default. Therefore, I made a patch that, if the phone model is 0301,  
leaves out the SMSC information from the PDU format messages. Therefore  
the patch should not affect other models.

Additionally, I also copypasted code from AT_WriteSMS to AT_GetSMS to  
ensure that PDU mode is being selected also when reading messages. I ran  
into a problem when I had been testing in between and the pdu mode had  
been disabled. In this case gnokii failed to read messages.

For the reference, I am using the AFW-3 data adapter cable and it works  
just fine.

The patch is here:

http://xkr47.outerspace.dyndns.org/patches/gnokii/gnokii-0.5.10-premicell.diff

*) http://www.nokia.com/nokia/0,8764,2696,00.html

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- xkr47