ProtectedfeaturesThe capability flags for the provider this bridge instance serves. Populated from the RealtimeBridgeContext at BaseRealtimeBridge.Connect time (and may be set by the engine immediately after construction). Drives BaseRealtimeBridge.RequireFeature.
ProtectedproviderThe provider's display name for this bridge instance, used in capability-error messages. Populated from the RealtimeBridgeContext; falls back to the driver class name.
The bot's member id in the joined meeting (or null before Connect).
The provider's supported-feature flags for this bridge instance.
Read-only accessor over the internally-held BaseRealtimeBridge.features. The engine consults this (and the underlying provider metadata) to decide which optional methods are safe to call; a driver consults it via BaseRealtimeBridge.RequireFeature.
ProtectedapplyCaptures the connection context onto the instance so BaseRealtimeBridge.Features, BaseRealtimeBridge.RequireFeature, and capability-error messages have the provider's flags and name. A concrete BaseRealtimeBridge.Connect should call this first.
The bridge context handed to Connect.
Joins the Webex meeting and brings the bot online. Captures the capability context, builds the SDK from the sdkFactory, wires the inbound raw-audio path and meeting-ended callback, joins, and (when the provider diarizes) constructs + seeds the Meeting Controls event source.
The bridge context (features, provider name, the meeting link as Address, config).
The bot member + meeting (external connection) identifiers, persisted by the engine.
Leaves the Webex meeting and releases all SDK resources. Tolerant of teardown errors.
Why the disconnect happened (Webex teardown is uniform; the bot simply leaves).
Flushes any outbound media the driver has queued for the endpoint — the agent's not-yet-played voice. The engine calls this on a true barge-in (the user interrupts the agent) so the agent stops talking immediately instead of draining already-buffered audio after the model was cut off.
No-op by default (NOT capability-gated): a driver with no client-side outbound buffer simply has nothing to flush, so calling this is always safe. Drivers that buffer outbound audio override it.
Returns the Webex Meeting Controls event source for this session (roster · hand-raise · speaking ·
mute), or null when diarization is off (no roster to facilitate). The engine wires the Meeting
Controls channel from this.
Returns the current Webex member roster (gated by SpeakerDiarization). Re-asserts the flag
(defense-in-depth) so even an engine-bypassing caller cannot pull a roster a disabled provider
forbids.
The current members.
ProtectednotBuilds the standard BridgeCapabilityNotSupportedError for an un-overridden virtual method or a failed feature requirement, stamped with this bridge's provider name.
The feature / method name to report.
The error to throw or reject with.
Registers a handler invoked when the driver can no longer show the agent's avatar (see BridgeAvatarFailure): it has taken the avatar's video down and told the room. The engine then replaces the model session with one that renders no avatar, so the model stops generating (and billing) video nobody sees.
No-op by default (NOT capability-gated): a driver that publishes no avatar never loses one, so registering is always safe. Drivers that publish an agent's avatar override it.
Invoked once, with why the avatar can no longer be shown.
Registers the inbound-media handler. The driver forwards each raw per-participant audio frame
(with its speaker label) to this handler; the engine routes it to IRealtimeSession.SendInput.
Invoked with each inbound media frame.
Registers a roster-change handler (gated by SpeakerDiarization). The driver fires it from the
SDK's member join/leave stream with the full current roster.
Invoked with the updated participant list on each change.
Registers a handler invoked when an inbound camera or screen source the driver was sending stops: the person stopped letting agents see them, left, stopped sharing or turned the camera off, or the driver moved the model's view to another source. The engine tells the model, so it stops describing what it can no longer see.
No-op by default (NOT capability-gated): a driver that sends no inbound video has no source to end, so registering is always safe. Drivers that send camera or screen frames override it.
Invoked with each source that ended.
Posts a message to the Webex meeting space chat. Exposed for the channel plane / turn-taking hybrid mode (the social-cost-free "raise hand"). Best-effort — a chat failure is logged, never fatal.
The chat message to post.
ProtectedRequireDefense-in-depth guard: asserts a SupportedFeatures flag is enabled before the driver
performs a capability-gated action, throwing BridgeCapabilityNotSupportedError if it
is false/omitted. An overriding driver method should call this at its top so that even a
direct (engine-bypassing) caller cannot run an action the metadata says is off.
The IBridgeProviderFeatures flag to require.
Sends DTMF tones on a telephony bridge.
Capability-gated by SupportedFeatures.DTMF. Throws unless overridden by a telephony driver.
The DTMF digit string to send (e.g. '1234#').
A promise that resolves once the tones have been sent.
Sends an outbound media frame into the meeting. Audio is fed to the SDK's outbound audio-track
path; video-out and screen-out frames are dropped: the SDK seam has no video or screen send, so
the provider row claims neither VideoOut nor ScreenOut.
The outbound track the frame targets.
The media frame to send.
Sets the WebexMeetingSdkFactory this driver uses to construct its SDK seam at connect —
the creation seam (mirroring Gemini's overridable connectLiveSession). Production binds the
real Cisco Webex Meetings SDK adapter here; tests inject a FakeWebexSdk.
The factory that builds the IWebexMeetingSdk for a session.
Transfers the call to another party on a telephony bridge.
Capability-gated by SupportedFeatures.CallTransfer. Throws unless overridden.
The transfer target (a phone number or platform endpoint identifier).
A promise that resolves once the transfer has been initiated.
Realtime Bridge driver for Cisco Webex meetings.
Construct the driver with the default constructor (the engine's
ClassFactorypath) — it lazily builds the Webex SDK from the sdkFactory at Connect time. Tests inject aFakeWebexSdkby overriding the factory via SetSdkFactory (the creation seam) before connecting.Registered via
@RegisterClass(BaseRealtimeBridge, 'WebexBridge').