Telecommunications – Radiotelephone system – Special service
Patent
1996-06-11
1998-12-22
Chin, Wellington
Telecommunications
Radiotelephone system
Special service
455414, 455434, 455435, 455436, H04M 342
Patent
active
058527770
ABSTRACT:
A method and apparatus for screening a call in a telecommunications network having a first system comprising a first subscriber station and a second system comprising a second subscriber station, associated with the first subscriber station by a predetermined relationship. Each subscriber station in the first system has a unique subscriber number and the second system having a general number for all subscriber stations. In the method and apparatus, call setup requests for calls to the general number of the second system are screened to determine if the call was originally made to the number of the first subscriber station and then forwarded to the general number of the second system, or if the call was originally made to the general number. If the call was originally made to the first subscriber station, only the second subscriber station is alerted. If the call was originally made to the general number, all the subscriber stations in the second system are alerted.
REFERENCES:
patent: 5329578 (1994-07-01), Brennan et al.
patent: 5469496 (1995-11-01), Emery et al.
patent: 5504804 (1996-04-01), Widmark et al.
patent: 5548636 (1996-08-01), Bannister et al.
patent: 5592533 (1997-01-01), McHenry et al.
Chin Wellington
Nguyen Thuan
Nokia Mobile Phones Limited
Rivers Brian T.
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