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US5255315A
(en)
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Method of rerouting telecommunications traffic
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JPH07203081A
(ja)
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情報サービスシステムと情報サービスの提供方法
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US6628769B1
(en)
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Intelligent network
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CZ104497A3
(en)
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Switched network and a telecommunication system containing such switched network
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US4782508A
(en)
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Method of discouraging the completion of wrong-number calls
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CA2146186A1
(en)
|
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Enhanced efficient telephone number portability
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US6289088B1
(en)
|
|
Pay phone call completion method and apparatus
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US6055306A
(en)
|
|
Suppression of call answer supervision in a telephone network by an intelligent peripheral
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WO2002003171A2
(en)
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|
Method and system for providing caller identification for an unidentified calling party
|
|
US5652753A
(en)
|
|
Digital telephone
|
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GB208509A
(en)
|
|
Improvements in or relating to telephone systems
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CA2323908C
(en)
|
|
Methods for processing operator services system calls
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US3643224A
(en)
|
|
Centralized message assembler
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CA2200631C
(en)
|
|
Security station receiver
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US2966551A
(en)
|
|
Public announcing system
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BE373049A
(de)
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|
|
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EP1493166B1
(de)
|
|
Relay und crossconnect
|
|
BE374766A
(de)
|
|
|
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BE501256A
(de)
|
|
|
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US1945467A
(en)
|
|
Telephone system
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BE531767A
(de)
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|
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CH293577A
(fr)
|
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Installation de télécommunication.
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JPH01128658A
(ja)
|
|
交換機の回線選択方式
|
|
JP3375384B2
(ja)
|
|
着信制御方法
|
|
JPS6367096A
(ja)
|
|
構内電話交換機
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