Processing of operational data in telecommunication system

Profit-based method of assigning calls in a transaction...

Programmable call progress tones for a switching system

Programmable modular apparatus and method for processing digital

Programmable multi-tone voice message starting system

Programmable P/C compatible communications card

Programmable ring signal generator

Programmable telecommunication switch for personal computer

Promoting caller voice browsing in a hold queue

Promoting use of experts to callers waiting in a hold queue

Protection cover and electronic device using the same

Protector module for laminar type telephone blocks

Provide a graceful transfer out of active wait treatment

Providing alerting/call waiting/call holding services to...

Providing customer data to an automatic call distribution...

Push-button signal receiving circuit and a method of...