Call waiting processing system, and originating terminal unit, d

Details Call waiting processing system, and originating terminal unit, d Call waiting processing system, and originating terminal unit, d

1996-02-06

1998-10-27

Matar, Ahmad F.

Telephonic communications

Special services

Call waiting

379209, 379309, H04M 348

Patent

active

058287442

ABSTRACT:
A call waiting processing system used in an ISDN network includes an originating terminal unit and a destination terminal unit. To reduce an inefficient load on the terminal units, resulting from an unacceptable call setting, the system is configured such that when the originating terminal unit is in a calling mode, provided that the destination terminal unit is in a busy mode, the originating terminal unit requests a notification of a waiting period available for call setting to the destination terminal unit. When the destination terminal unit receives a notification request for a waiting period from the originating terminal unit, it notifies the originating terminal unit of the waiting period.

REFERENCES:
patent: 4807276 (1989-02-01), Okabe
patent: 4958153 (1990-09-01), Murata et al.

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