Modem not answering

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We recently bought 9 new 56k modems. 8 of the 9 are working fine. However
the last one is being a pest. The port specific variables for each modem
are exactly the same.

port ttyC8
debug 4
data-only y
init-chat "" \d\d\d+++\d\d\dAT&FM0W2S37
speed 115200

The logs for the working modems shows:

07/07 16:18:14 yC4  locking the line
07/07 16:18:14 yC4  lowering DTR to reset Modem
07/07 16:18:15 yC4  send: \d\d\d+++\d\d\dAT&FM0W2[0d]
07/07 16:18:18 yC4  waiting...
07/07 16:18:33 yC4  waiting for ``RING'' ** found **
07/07 16:18:33 yC4  send: ATA[0d]
07/07 16:18:33 yC4  waiting for ``CONNECT'' ** found **
07/07 16:18:46 yC4  send:
07/07 16:18:46 yC4  waiting for ``_'' ** found **
07/07 16:18:50 ##### data dev=ttyC4, pid=2708, caller='none',
conn='26400', name='', cmd='/bin/login', user='hebenn'

The logs for the troubled modem shows this instead:

07/07 16:18:14 yC8  check for lockfiles
07/07 16:18:14 yC8   checklock: stat failed, no file
07/07 16:18:14 yC8  locking the line
07/07 16:18:14 yC8   makelock(ttyC8) called
07/07 16:18:14 yC8   do_makelock: lock='/var/lock/LCK..ttyC8'
07/07 16:18:14 yC8   lock made
07/07 16:18:14 yC8   tio_get_rs232_lines: status: RTS CTS DSR DTR RI
07/07 16:18:14 yC8  lowering DTR to reset Modem
07/07 16:18:15 yC8   tss: set speed to 115200 (10002)
07/07 16:18:15 yC8   tio_set_flow_control( HARD )
07/07 16:18:15 yC8   waiting for line to clear (VTIME), read:
07/07 16:18:15 yC8  send: \d\d\d+++\d\d\dAT&FM0[0d]
07/07 16:18:18 yC8   waiting for line to clear (VTIME), read:
AT&FM0[0d][0d][0a]OK[0d][0a]
07/07 16:18:18 yC8   removing lock file

another piece shows something slightly different but the first log is the
dominant output

07/07 16:20:28 yC8   removing lock file
07/07 16:20:28 yC8  waiting...
07/07 16:21:56 yC8    select returned 1
07/07 16:21:56 yC8   checking lockfiles, locking the line
07/07 16:21:56 yC8   makelock(ttyC8) called
07/07 16:21:56 yC8   do_makelock: lock='/var/lock/LCK..ttyC8'
07/07 16:21:56 yC8   lock made
07/07 16:21:56 yC8  waiting for ``RING''
07/07 16:21:56 yC8   got: [0d][0a]RING ** found **
07/07 16:21:56 yC8    CND: check no: 'none'
07/07 16:21:56 yC8  send: ATA[0d]
07/07 16:21:56 yC8  waiting for ``CONNECT''
07/07 16:21:56 yC8   got: [0d]
07/07 16:21:56 yC8    CND: RING[0a]ATA[0d]
07/07 16:21:56 yC8    CND: ATA[0d][0a]NO CARRIER
07/07 16:22:59 yC8  found action string: ``NO CARRIER''
07/07 16:22:59 ##### failed A_FAIL dev=ttyC8, pid=2845, caller='none',
conn='',
name=''