Telephonic communications – Special services – Anonymous party
Patent
1996-09-03
1998-08-11
Zele, Krista
Telephonic communications
Special services
Anonymous party
379165, 379242, 379245, H04M 300
Patent
active
057938563
ABSTRACT:
A switch system for switching extension numbers, which can be changed by a subscriber having the extension number of the BBG (Basic Business Group) without the operation by a switch operator, is connected with a plurality of telephone sets (TEL) which belong to the BBG (Basic Business Group). An access code and an extension number are sent from one telephone set of the BBG to the switch. A former extension number of the one telephone set is deleted by the switch system and is registered in the switch to change the former extension number of the one telephone set to the extension number sent from the one telephone set. The switch system has a subscriber circuit section, a digital switch module and a central processing section including a central processor, a main memory and a file memory. The file memory has memory areas of a telephone number exchanging table which stores outline numbers (DN), a LEN index table that stores LENs (subscriber line position information), and a subscriber information table which stores subscriber data (SD). Each of the LENs is extracted by an outline number as an address and each of the subscriber data is extracted by a LEN as an address.
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Fujitsu Limited
Weaver Scott L.
Zele Krista
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