Call arrangement and connection using messaging

Call forwarding reprogramming device

Call initiation via calendar

Call initiation via calendar

Call initiation via calendar

Call initiation via calendar

Call initiation via calendar

Call me conference call system

Call pod for having conference calls in a portable environment

Centralized management and allocation of bridges in a telecommun

Choice of guaranteed vs. bumpable conference call reservations

Classifying signals at a conference bridge

Collaborative conferencing circuit

Combining signals at a conference bridge

Combining signals at a conference bridge

Common control of an electronic multi-pod conferencing system

Communication apparatus

Communication system for a closed-user group

Communication system, server apparatus, and display control...

Communication system, server equipment and terminal equipment