PURPOSE: To equalize the load for each inter-office junction line with a packet exchange by totalizing the number of transmission packets for each call number and giving the number of the minimum totalized value to a new call.
CONSTITUTION: A call control circuit 15' actuates a call number selection circuit 16 to give numbers to calls. A packet number totalizer circuit 17 totalizes the number of packets sent to an inter-office junction line 3 via a packet control circuit 12, a circuit selection circuit 13 and a transmission circuit 14 for each call number after a terminal circuit 2 reaches a reception circuit 11. A call number selection circuit 16 refers to the number of packets totalized by the circuit 17 for each call number to select a call number of the minimum number of packets and informs it to the circuit 15'. Then the circuit 15' gives the call number sent from the circuit 16 to a call which is newly produced. In other words, a call number having the minimum number of packets is given to the new call. This can equalize the number of packets which are carried for each call number.
SONE YUKIO
MAKINO ATSUHIRO
OTSUKI JIRO
TAKAHASHI EIICHIRO
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