Michael Irizarry

Data pre-paid in simple IP roaming

System and method for tearing down individual IP communication sessions in multiple IP stack devices

System and method for landline replacement

System selection based on service-specific preferred roaming list in a wireless network

Mobile telephone charger with promotional audio output

Service utilization control manager

Applications of cluster analysis for cellular operators

Enhanced configuration and handoff scheme for Femto systems

Zero rating in wireless prepaid communications network

Efficient neighbor list creation for cellular networks

Establishing network policy for session-unaware mobile-device applications

Inter-working location gateway for heterogeneous networks

Distributing mobile-device applications

Mobility based service in wireless environment

Application access control in a mobile environment

Enhanced cross-network handoff for mobile IP service mobility

Distributed architecture for IP-based telemetry services

Access based internet protocol multimedia service authorization

Data pre-paid in simple IP data roaming

Selective handoff between access gateways

State-full perimeter security for data networks

Control of cellular data access

System and method for invoking applications based on a location of a mobile station

Client-based context-based billing for wireless networks

Handset shopping tool and method thereof

System and method for providing talker arbitration in point-to-point/group communication

System and method for measuring and recording latency in internet protocol networks