System for virtual connection to dedicated PSTN lines
作者： Darrell W. Barabash
DOI:
关键词:
摘要: A method and apparatus are provided for connecting a telephone subscriber to the public switched network ("PSTN"), where physical connection is not available while utilizing conventional telephony terminals. The using wireless telecommunications system adapted with gateway collection of lines switch between PSTN. When call be made, sends predetermined access number identify caller as caller. Thereafter, made dedicated PSTN line. includes providing code obtain trunk line thereafter, normal progression cues by PSTN, such busy signal dial tone. destination dialed DTMF then sent over designated voice channel transceiver, An interface which microprocessor programmed follow origination reception sequence well circuitry communication mobile station transceiver set.
lens.org 参考文章(22)
Alan J. Lischin, Telephone station apparatus with selective restricting of local calls ,(1981)
Yoshifumi Yonaga, Remote telephone system ,(1979)
John Paul Byrns, Self-clocking data transmission system. ,(1981)
Ronald Beebe, Long distance telephone call security system ,(1979)
Hiromi Orikasa, Multi-channel access (mca) radio telephone system ,(1984)
Hamid Akhavan, Personal phone number system ,(1994)
Markku Lehto, Matti Makkonen, Tapani Pokka, Wireless private branch exchange system for use with mobile communication devices ,(1993)
C Tabalba, A Lawson, Telephone dialing arrangement ,(1973)
Sanna M aenp aa, Antero Alvesalo, Seija Salmela, Method and system for location-updating of subscriber mobile stations in a mobile radio network by a combination of mobile initiated location updating of some mobile stations and network-initiated location updating of others ,(1993)
Duncan B. Cox, William M. Bowles, Pseudo-random-number-code-detection and tracking system ,(1978)