Inventor
GORREPATI PATUARDHANA BABU
US4 patents
Patents
4 patentsUS6603761B1Aug 5, 2003
Using internet and internet protocols to bypass PSTN, GSM map, and ANSI-41 networks for wireless telephone call delivery
LUCENT TECHNOLOGIES INC189 citations97
US6526033B1Feb 25, 2003
Delivering calls to GSM subscribers roaming to CDMA networks via IP tunnels
LUCENT TECHNOLOGIES INC130 citations96
US6493551B1Dec 10, 2002
GSM MoU bypass for delivering calls to GSM subscribers roaming to CDMA networks
LUCENT TECHNOLOGIES INC73 citations95
US6526390B1Feb 25, 2003
Independent billing settlement for call origination by wireless subscribers roaming to foreign wireless networks
LUCENT TECHNOLOGIES INC24 citations91