Builds the per-session SDK binding that wires the REAL Twilio bindings (REST client + the per-call media registry) onto the telephony driver — overriding the package's default unbound SDK.
Resolves the dialed DID to a pinned agent and starts an INBOUND bridge session. The bound
RealTwilioBindings will accept the Media-Streams socket (opened by the webhook's TwiML) for the
Call SID. Returns { accepted:false } (never throws) when no agent identity matches the DID, so
the webhook can answer with a polite "no agent" message instead of a 500.
Places an OUTBOUND call from a given agent identity to a destination number. The bound
RealTwilioBindings.createCall issues the Twilio REST POST /Calls with the <Connect><Stream>
TwiML; the returned Call SID is the bridge's external connection id.
The placed Call SID.
Starts Twilio bridge sessions. One instance per server, constructed alongside the telephony router and sharing the TwilioCallMediaRegistry with the Media-Streams WSS server.