mgetty problem

[Toby McMillan, RHCE]

Trying to use an application to communicate using /dev/ttyS0 as the
device, my entry in /etc/inittab says: S0:2345:respawn:/sbin/mgetty -x
5 ttyS0 And here's a pertinent portion of the log file:

05/16 17:43:09 yS0   mdm_gis: string 1: 'USRobotics Courier V.Everything'
05/16 17:43:09 yS0  additional info: 'USRobotics Courier V.Everything'
05/16 17:43:09 yS0  modem quirks: 0080
05/16 17:43:09 yS0  mdm_send: 'AT+FCLASS=2.0'
05/16 17:43:09 yS0   mdm_command: string 'OK' -> OK
05/16 17:43:09 yS0  mdm_send: 'AT+FAA=1;+FCR=1'
05/16 17:43:09 yS0   mdm_command: string 'OK' -> OK
05/16 17:43:09 yS0  mdm_send: 'AT+FBO=1'
05/16 17:43:09 yS0   mdm_command: string 'OK' -> OK
05/16 17:43:09 yS0  mdm_send: 'AT+FNR=1,1,1,0'
05/16 17:43:09 yS0   mdm_command: string 'OK' -> OK
05/16 17:43:09 yS0  mdm_send: 'AT+FLI="49 115 xxxxxxxx"'
05/16 17:43:09 yS0   mdm_command: string 'OK' -> OK
05/16 17:43:09 yS0  mdm_send: 'AT+FCC=1,5,0,2,0,0,0,0'
05/16 17:43:09 yS0   mdm_command: string 'OK' -> OK
05/16 17:43:09 yS0   waiting for line to clear (VTIME=3), read:
05/16 17:43:10 yS0   removing lock file
05/16 17:43:10 yS0  waiting...


And it just stalls. Any ideas where I could look into first?Thanks in advance.