System for routing calls to mobile subscribers

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

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379 60, 455 331, H04Q 738

Patent

active

055264000

ABSTRACT:
The local access and transport area identification number (LATAID) of the area within which both the A- party and B-party of a call are located is indicated within all roamer routing messages. This information enables automatic call setup within a cellular network in the most cost effective manner which still complies with the interLATA carrier regulations.

REFERENCES:
patent: 4868558 (1989-09-01), Andros et al.
patent: 5282240 (1994-01-01), Buhl et al.
patent: 5339352 (1994-08-01), Armstrong et al.
patent: 5353340 (1994-10-01), Kunz
"System 900: The ISDN Approach to Cellular Mobile Radio" M. Wizgall et al, 1989.
"Cellular Mobile Radio as an Intelligent Network Application" Electrical Communication vol. 63, M. Ballard et al, 1989.
"Straw Man for Automatic Roaming" Electronic Industries Association, Jun. 1985 p. 7.
"EIA/TIA Interim Standard for Automatic Roaming" Electronic Industries Association, Dec. 1991.

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