Redirection information

           8  7  6  5  4  3  2  1
        1  b  b  b  b  -  a  a  a
        2  e  e  e  e  d  c  c  c

NOTE - The parameter may be received without the second octet from an ISUP'88 (Blue Book).

a) Redirecting indicator

0 0 0  no redirection (national use)
0 0 1  call rerouted (national use)
0 1 0  call rerouted, all redirection information presentation restricted (national use)
0 1 1  call diverted
1 0 0  call diverted, all redirection information presentation restricted
1 0 1  call rerouted, redirection number presentation restricted (national use)
1 1 0  call diversion, redirection number presentation restricted (national use)
1 1 1  spare

b) Original redirection reason
0 0 0 0  unknown/not available
0 0 0 1  user busy (national use)
0 0 1 0  no reply (national use)
0 0 1 1  unconditional (national use)
         spare

c) Redirection counter. Number of redirections the call has undergone expressed
   as a binary number between 1 and 5.

d) Reserved for national use

e) Redirecting reason
0 0 0 0 unknown/not available
0 0 0 1 user busy
0 0 1 0 no reply
0 0 1 1 unconditional
0 1 0 0 deflection during alerting
0 1 0 1 deflection immediate response
0 1 1 0 mobile subscriber not reachable
        spare