Combined conferencing and calling
Communication control apparatus and network management...
Communication control apparatus and network management...
Communication method, communication system, and connection...
Communication node receipt of node-output information from...
Communication system with connectable interface device
Communication system with connectable interface device
Communication system, method and processing means for...
Communication terminal apparatus
Communications apparatus for multimedia information
Communications network management
Communications network management
Communucation device for providing multimedia in a group...
Computer-based telephone call conferencing
Computer-based telephone call conferencing
Conference call bridge arrangement
Conference call initiation
Conference call initiation
Conference call on a personal handy phone system portable statio
Conference circuit for encoded digital audio