
181
 >
5 <;&# ,=,"
 ^   ,  &   > % 
&  >. ]    ^   > FSK  DTMF.
!#  %   &  >,  # &  #. ! 
&    , %  &  !
]   #&  40      (&
  )     ^ &.    
# &    #    .
    ,    > &  &  
.
     :
4!  &      & & 
^^.
 & %   “!<®!®´” (CONFIRM).
5<  ��^^  >.
= & 3 $   $+  &  3
 "#. %&"+ $   &*+ &
.
 & >  &  #   & 15
#& .     & >
&   & &  &  % '  
 OK     &   &.
=      #   # 
^^  &.
1<    .
! #     ,     “!=”
(EMPTY).
2  . ] & >  % 
 &  &  #     
. !     ,  >  >
.
 %  >^ ,    .  %
 >^ ,    .
3<   OK   #  ��& &.
!  & &  > & 12 ,   
 OK    &  &.
4<    OK        
  .