Method and apparatus for setting up a call over a...

Details Method and apparatus for setting up a call over a... Method and apparatus for setting up a call over a...

2006-05-23

2006-05-23

Sam, Phirin (Department: 2661)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S467000, C455S432100

Reexamination Certificate

active

07050414

ABSTRACT:
A method comprises the steps of directing a call intended for a mobile (531) to a virtual tandem switch (501). The virtual tandem switch (501), which may include multiple converters (505and507) queries a home location register to obtain call information for the mobile (531). The call to the mobile (531) is set up over a packet-based transport network (523).

REFERENCES:
patent: 6282191 (2001-08-01), Cumberton et al.
patent: 6282194 (2001-08-01), Cheesman et al.
patent: 6515985 (2003-02-01), Shmulevich et al.
patent: 6618588 (2003-09-01), Easley
patent: 6757278 (2004-06-01), Bi et al.
patent: 6765903 (2004-07-01), Allen, Jr. et al.

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