Call forwarding via a 2-line phone
Call holding alert system
Call holding for a video call in a mobile communication device
Call transfer device for an automatic answering phone using an a
Calling system and method
Cellular communications system utilizing paging areas
Communication apparatus selectively preventing production of...
Communication system, communication management system and...
Computer having automatic answering state displaying and...
Computer system having automatic answering telephone function
Computer system with an automatic answering device and an automa
Conversation recording with real-time notification for users...
Cordless telephone system having an automatic answering device