| 摘要 |
A communication system and method for more cost-effectively conducting a conference call between multiple wired or wireless handset users and a remote conferee communicating over a telephone line (105). Each of the incoming compressed signals from the handset users are decompressed and attenuated, prior to being added together. The summed signals are then put through a digital-to-analog converter and sent to the remote conferee on the telephone line. The summed signals are also added to the output resulting from the operation of an analog-to-digital converter on the incoming signal from the remote conferee, and the entire summed signal is compressed and sent out to each of the handset users. |
