Problems with mgetty-1.1.1 using Siemens PCMCIA GSM modem 'Mobile Connector' with Handy Siemens S4

Gert Doering (gert@greenie.muc.de)
Tue, 18 Feb 1997 13:09:28 +0100


Hi,

Ingo M. Hoffmann wrote:
> sorry if I have not read the documentation careful enough, but so far 
> I've not found any documentation about the above mentioned modem!
> 
> Unfortunately the default values don't work! (Log-File attached)
[..]
> 02/18 09:53:57 yS1   waiting for line to clear (VTIME), read: 
> 02/18 09:53:57 yS1   removing lock file
> 02/18 09:53:57 yS1  waiting...

Iniitialization looks quite promising (dumb modem, but should work).

> 02/18 09:57:18 yS1    select returned 1
> 02/18 09:57:18 yS1   checking lockfiles, locking the line
> 02/18 09:57:18 yS1   makelock(ttyS1) called
> 02/18 09:57:18 yS1   do_makelock: lock='/var/lock/LCK..ttyS1'
> 02/18 09:57:18 yS1   lock made
> 02/18 09:57:18 yS1  waiting for ``RING''
> 02/18 09:57:18 yS1   got: [0d]
> 02/18 09:57:18 yS1    CND: OK[0a]RING ** found **
> 02/18 09:57:19 yS1  send: ATA[0d]
> 02/18 09:57:19 yS1  waiting for ``CONNECT''
> 02/18 09:57:19 yS1   got: [0d]
> 02/18 09:57:19 yS1    CND: RING[0a][0d][0a]CONNECT ** found **
> 02/18 09:57:27 yS1  send: 
> 02/18 09:57:27 yS1  waiting for ``
> ''
> 02/18 09:57:27 yS1   got:  9600[0d]
> 02/18 09:57:27 yS1    CND: CONNECT 9600
> 02/18 09:57:27 yS1    CND: found: 9600[0a] ** found **
> 02/18 09:57:27 yS1   waiting for line to clear (VTIME), read: [83][a2]o[f2][ec][85][da]pQK[1f]W[a4][83][a2]o[f2][ec][85][da]pQK[1f]W[a4][83][a2]o[f2][ec]

This looks like a connection without error correction, on a heavily
distorted phone line. Please lookup in the docs of the modem how you can
enable (and force the modem to use it!) error correction, then add that
AT command to the init sequence.

gert

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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-3545980                         gert.doering@physik.tu-muenchen.de