227550 ⎘
Automatic or semi-automatic exchanges with means for interrupting existing connections; with means for breaking-in on conversations Eavesdropping prevention - indication of insecurity of line or network
Real time switching from unsecured to secured signaling channel
#2Mutual disabling unit for multiple phones
#3System and method for detecting and controlling contraband devices in a controlled environment
#4System and method for detecting and controlling contraband devices in a controlled environment
#5Base station device, gateway device, call connecting method, and wireless communication system
#6System and Method for Data Masking and Managing Communications
#7System and method for detecting and controlling contraband devices in a controlled environment
#8Systems and Methods for Positioning a User
#9MITIGATING AN INDUCED ELECTRICAL SIGNAL FROM AN APPLIANCE IN A POWERED-OFF STATE
#10Recording detection during a communication session
#11Method for encrypted call and terminal
#12Detection of privacy breach during a communication session
#13Mitigating an induced electrical signal from an appliance in a powered-off state
#14Controlled-environment facility resident communication detection
#15Base station device, gateway device, call connecting method, and wireless communication system
#16Systems and methods for positioning a user of a hands-free intercommunication
#17Base station device, gateway device, call connecting method, and wireless communication system
#18System and method for detecting three-way call circumvention attempts
#19Support of non-secure warning tones on packet-switched networks, particularly across multiple security domains
#20Application of a non-secure warning tone to a packetised voice signal
#21Systems and methods for communicating a stream of data packets via multiple communications channels
#22System and method for detecting three-way call circumvention attempts
#23Base station apparatus for operation as part of an access network of a telecommunications network
#24Serving GPRS support node and controlling method
#25Integration of cellular phone detection and reporting into a prison telephone system
#26ETHERNET ISOLATOR FOR MICROPHONICS SECURITY AND METHOD THEREOF
#27ETHERNET ISOLATOR FOR MICROPHONICS SECURITY AND METHOD THEREOF
#28Methods, systems, and apparatus for handling secure-voice-communication sessions
#29Base station device, gateway device, call connecting method, and wireless communication system
#30Method to improve fraud detection on conference calling systems by detecting re-use of conference moderator passwords
#31Method and apparatus for secure communications
#32System and method for handling data transfers
#33System and method for detecting three-way call circumvention attempts
#34Methods, systems, and apparatus for handling secure-voice-communication sessions
#35Ethernet isolator for microphonics security and method thereof
#36Integration of cellular phone detection and reporting into a prison telephone system
#37Network support for call detail record suppression
#38Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
#39System and method for handling data transfers
#40Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
#41Systems and methods for protecting users
#42Recording detection during a communication session