Restricted voice routing

Details Restricted voice routing Restricted voice routing

2007-12-18

2007-12-18

Nguyen, Quynh H. (Department: 2614)

Telephonic communications

Special services

Call blocking

C379S211010, C379S211020, C379S207020, C379S201010, C379S201040, C379S142010

Reexamination Certificate

active

10294290

ABSTRACT:
An enhanced AIN telephone system that can screen incoming calls during predetermined time periods and block some calls while allowing selected calls to be completed.

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