P

Assignee

TERPSTRA RICHARD

US3 patents

Top patents by PatentIndex Score

US8401161B2Mar 19, 2013

Routing outbound toll-free calls through a VoIP network

TERPSTRA RICHARD42 citations90
US8520668B2Aug 27, 2013

Geographic trunk groups

TERPSTRA RICHARD6 citations81
US8520667B2Aug 27, 2013

Internet protocol trunk groups

TERPSTRA RICHARD2 citations60