GSM0710MUXD(8)						      System Manager's Manual						    GSM0710MUXD(8)

NAME

       gsm0710muxd - a gsm 07.10 muxer

SYNOPSIS

       gsm0710muxd [options]

DESCRIPTION

       A  gsm  muxer is needed to keep a ppp/gprs up & running while sms and calls are still signaled on another channel. Some modems even support
       using gprs while a call is active, others suspend gprs during calls.

       The muxer supports various options to change the behaviour for different modems. Use -h to see a brief help screen.

       All logging is done through syslog, see the syslog for errors and warnings.

COMMAND-LINE OPTIONS
       -d   Fork, get a daemon (default: no)

       -v   Verboser logging (give twice for even more verbose)

       -s <serial port name>
	    Serial port device to connect to (default: /dev/modem)

       -t <timeout>
	    reset modem after this number of seconds of silence (default: 0)

       -P <pin-code>
	    PIN code to unlock SIM (default: <not set>). This is normally not needed but some modems need the pin before enabling the muxer mode.

       -p <number>
	    use ping and reset modem after this number of unanswered pings (default: 0)

       -l <filename>
	    set logfile name (default: <not set>)

       -x <dir>
	    power managment base dir (default: <not set>)

       -a <mode>
	    additional_functionality (default: 0). This is a bit-set enabling quirks for different modem. The quirks are: WAKEUP_WITH_SYSFS  =	1,
	    WAKEUP_WITH_SEQUENCE = 2, SIEMENS_C35 = 4, ENFORA = 8, SHORT_INIT = 16.

       -b <baudrate>
	    muxer-mode baudrate (default: 115200)

       -B <baudrate>
	    serial port baudrate (default: 115200)

       -m <mode>
	    Mode (basic, advanced) (default: advanced)

       -f <framsize>
	    Frame size (default: 64)

       -h   Show a help message and display current settings.

HISTORY

       The name 'gsm0710muxd' was choosen because the gsm specs describe this method in document 7.10.

BUGS
/LIMITATIONS
       gsm0710muxd There may accure bufferoverruns and thus missing data between muxer and client under certain situations.

       Some  settings  could be determined by a AT-command at startup. This wouldn't be much reliable because modems often lie so i did not invest
       to much work in this.

AUTHOR

       M. Dietrich <mdt@pyneo.org>

SEE ALSO

       ptsname(3)

gsm0710muxd							   23 June 2009 						    GSM0710MUXD(8)