# `Parlora.Channels.Twilio.Socket`
[🔗](https://github.com/hfiguera/parlora/blob/v0.1.0/lib/parlora/channels/twilio/socket.ex#L1)

WebSock transport for an authenticated and authorized Twilio call.

The host supplies `start_session: fn channel -> ... end`, setting μ-law as
the session's `audio_format`, and `event_sink: self()`. Supply authorized
account/call IDs in `channel_options`. Authenticate before upgrading.
`on_ready` may send a greeting. The host owns admission and call duration.
Socket closure tears down the session; it does not issue a Twilio hangup API.

# `upgrade`

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*Consult [api-reference.md](api-reference.md) for complete listing*