Solved can't run mpg123 in background

If I running
/usr/local/bin/mpg123 -a /dev/dsp3.0 --loop -1 /usr/home/ishayahu/reklama.mp3
all works fine. But if I try
/usr/local/bin/mpg123 -a /dev/dsp3.0 --loop -1 /usr/home/ishayahu/reklama.mp3 &
I've got ( /usr/local/bin/mpg123 -a /dev/dsp1.0 --loop -1 /usr/home/ishayahu/boroda/Vivaldi.mp3 & was runned at startup somehow):
Code:
root@012-music:/home/ishayahu # /usr/local/bin/mpg123 -a /dev/dsp3.0 --loop -1 /usr/home/ishayahu/reklama.mp3 &
[1] 5938
root@012-music:/home/ishayahu # High Performance MPEG 1.0/2.0/2.5 Audio Player for Layers 1, 2 and 3
        version 1.25.10; written and copyright by Michael Hipp and others
        free software (LGPL) without any warranty but with best wishes

[1]  + Suspended (tty output)        /usr/local/bin/mpg123 -a /dev/dsp3.0 --loop -1 /usr/home/ishayahu/reklama.mp3
root@012-music:/home/ishayahu # ps -ax
 PID TT  STAT       TIME COMMAND
...
 823  -  S      13:11.82 /usr/local/bin/mpg123 -a /dev/dsp1.0 --loop -1 /usr/home/ishayahu/boroda/Vivaldi.mp3
...
5938  0  T       0:00.03 /usr/local/bin/mpg123 -a /dev/dsp3.0 --loop -1 /usr/home/ishayahu/reklama.mp3
...

As I can see, the process should be in status S, but it in T. Why process is terminated?
 
T is stopped, not terminated.

Code:
     state     The state is given by a sequence of characters, for example,
               "RWNA".  The first character indicates the run state of the
               process:

               D       Marks a process in disk (or other short term,
                       uninterruptible) wait.
               I       Marks a process that is idle (sleeping for longer than
                       about 20 seconds).
               L       Marks a process that is waiting to acquire a lock.
               R       Marks a runnable process.
               S       Marks a process that is sleeping for less than about 20
                       seconds.
               T       Marks a stopped process.
               W       Marks an idle interrupt thread.
               Z       Marks a dead process (a "zombie").
 
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