Callback if busy between station users of a private network Callback
if busy from and to public ISDN users Callback on no answer between
users in a private network (not VFSS)
- The parameter CBK must be declared in the AMO DIMSU
AD-DIMSU:TYPE=USER,CBK=number;
- For callback throughout the network the AMO COT has two parameters: CBBN
for callback if busy, and CCFN for callback on no answer.
AD-COT:COTNO=number,PAR=CBBN;
AD-COT:COTNO=number,PAR=CBFN;
IMPORTANT:
Line circuits must be hard-blocked,
since the Call References are not deleted with a soft block, and the
circuit only becomes free when all its callback jobs have been processed.
IMPORTANT:
Der COT parameter TSCS is to be set on
all digital circuits (tie/public).