Claims
- 1. A slave switch for connection to a first network over at least one outgoing line, said slave switch comprising:
- by-pass signalling means for receiving an alert signal indicative of an incoming call to a user connected to the slave switch; and
- means for initiating an outgoing call over said outgoing line in response to said alert signal;
- wherein said slave switch allows outgoing calls only by discarding any direct incoming call to any of its users.
- 2. A slave switch in accordance with claim 1 wherein said slave switch comprises a public branch exchange with a plurality of extensions to which telephone instruments are connected.
- 3. A slave switch in accordance with claim 1 wherein said slave switch comprises a public branch exchange with a plurality of extensions to which a radio switch is connected.
- 4. A slave switch in accordance with claim 3 wherein a number of base stations are connected to said extensions.
- 5. A slave switch in accordance with claim 4 wherein portable hand held cordless telephones communicate with said base stations.
- 6. A slave switch in accordance with claim 1 wherein said first network is the public telephone network and said line comprises telephone lines.
- 7. A slave switch in accordance with claim 1 wherein said first network is a mobile telephone network and said line comprises transceiver units.
- 8. A slave switch in accordance with claim 1 wherein a telephone number of said slave switch is terminated in a local exchange of a public switched telephone network, said local exchange serving as a master switch for said slave switch.
- 9. A slave switch in accordance with claim 8 wherein the slave switch is provided with signaling means for signaling with the master switch.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9302162 |
Jun 1993 |
SEX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/262,887, filed Jun. 21, 1994, abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (4)
Number |
Date |
Country |
398 183 |
Nov 1990 |
EPX |
2 125 252 |
Feb 1984 |
GBX |
WO9316545 |
Aug 1993 |
WOX |
WO9316546 |
Aug 1993 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
262887 |
Jun 1994 |
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