10.21.5 Silent conference participation
You can also dial in as a listener to conferences in conference rooms. You can then follow the conference, but not take part in the conversation.
To dial in as a silent conference participant, dial the number of the conference room plus the string '#OWC'; e.g. “219#OWC”. However, your administrator can individually adapt this dial-in option with a script. See also help.enreach.com/cpe/14.00/Administration/Swyx/en-US/index.html#context/help/silent_conference_$.
Please note that the complete string of digits (number of conference room#OWC) must be dialed as a block number.
The entry / departure of a silent conference participant is also announced by an audio signal. This signal is different from the usual entry/departure signal to indicate that this participant cannot take part in the conference call.