You can join a Cisco WebEx Telepresence bridge as a video participant or as an audio participant from a PSTN landline or mobile phone.
Video calling parties
Dial one of the following
The custom video address for video direct access: [display name].email@example.com.
The Telepresence bridge entry in your device's contact list.
Audio-only calling parties
Dial +1 (650) 963-0030.
When prompted, enter the 8-digit conference ID.
The WebEx Telepresence bridge service supports inbound calls only from WebEx Telepresence devices, standards-based H.323/SIP video devices, and PSTN calling parties. The WebEx Telepresence bridge service does not offer dial-out capability.