Communications

Telephonic Communications

Call Or Terminal Access Alarm Or Control

No:7231025

Acoustic encoding of dynamic identification codes

No:4885768

Active dipole telephone line protection device

No:6418211

Adaptive call screening method

No:5465293

Apparatus and method for screening foreign incollect calls to domestic non-collect call telephone numbers to reduce fraud

No:5818920

Apparatus for controlling communication connections based on local time

No:4866762

Apparatus for restricting telephone calls

No:5109408

Arrangement for intentionally blocking telephone calls to predefined destination numbers but allowing such blocking to be selectively overridden

No:5109405

Automated call screening

No:5267299

Automatic answering telephone apparatus with device to detect a remote control password

No:5737701

Automatic authentication system

No:6101249

Automatic call screening telecommunication device

No:6456706

Automatic telephone silent call screening system

No:4885767

Blue-box fraud prevention

No:4937854

Call screening device

No:5828742

Caller discrimination within a telephone system

No:5341411

Caller id blocking method and processing system (block caller id information)

No:5793839

Common channel signaling event detection and control

No:5926529

Communication system for detecting an unauthorized intruder terminal unit

No:6920209

Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access

No:5655013

Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access

No:5926533

Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access

No:6560323

Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access

No:6611583

Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access

No:7164754

Control of access for telephone service providers using voice recognition

No:5956717

Database origami

No:6490345

Dialing plan service including outgoing call screening, remote tie-line routing, call data reporting and billing

No:4232200

Dialing system

No:7231027

Encapsulation, compression, and encryption of pcm data

No:4866756

Interactive computerized communications systems with voice input and output

No:7133510

Managing access to resources and services utilizing call information

No:7363100

Material application system with remote access

No:5802157

Method and apparatus for controlling outgoing calls on a telephone line

No:5351287

Method and apparatus for data evidence collection

No:7136471

Method and apparatus for detecting a secondary destination of a telephone call based on changes in the telephone signal path

No:6141406

Method and apparatus for detecting a secondary destination of a telephone call based on changes in the telephone signal path

No:6188753

Method and apparatus for detection and prevention of calling card fraud

No:5675607

Method and apparatus for facilitating the making of card calls

No:6928151

Method and apparatus for limiting call origination accompanied by executing application

No:6587553

Method and apparatus for protecting call privacy

No:6775364

Method and apparatus for selectively sending a false system information tone on a telephone line

No:6914968

Method and apparatus for telephone call fraud detection and prevention

No:5774525

Method and apparatus utilizing dynamic questioning to provide secure access control

No:5534855

Method and system for certificate based alias detection

No:6141405

Method and system for detecting fraudulent collect calls

No:6963635

Method and system for facilitating collection of subscriber past due balance

No:6178231

Method and system for generating predetermined messages during selected calls-in-progress

No:5907597

Method and system for the secure communication of data

No:6636592

Method and system for using bad billed number records to prevent fraud in a telecommunication system

No:5729599

Method and system of forwarding calls in a remote access call forwarding service of a telephone system

No:6246756

Method and system to meter and control usage of telephone systems