This configures how transfer is executed and the experience of the destination party receiving the call. Usage: - blind-transfer: The assistant forwards the call to the destination without any message or summary. - blind-transfer-add-summary-to-sip-header: The assistant forwards the call to the destination and adds a SIP header X-Transfer-Summary to the call to include the summary. - warm-transfer-say-message: The assistant dials the destination, delivers the message to the destination party, connects the customer, and leaves the call. - warm-transfer-say-summary: The assistant dials the destination, provides a summary of the call to the destination party, connects the customer, and leaves the call. - warm-transfer-wait-for-operator-to-speak-first-and-then-say-message: The assistant dials the destination, waits for the operator to speak, delivers the message to the destination party, and then connects the customer. - warm-transfer-wait-for-operator-to-speak-first-and-then-say-summary: The assistant dials the destination, waits for the operator to speak, provides a summary of the call to the destination party, and then connects the customer. - warm-transfer-twiml: The assistant dials the destination, executes the twiml instructions on the destination call leg, connects the customer, and leaves the call. - warm-transfer-experimental: The assistant puts the customer on hold, dials the destination, and if the destination answers (and is human), delivers a message or summary before connecting the customer. If the destination is unreachable or not human (e.g., with voicemail detection), the assistant delivers the fallbackMessage to the customer and optionally ends the call. @default ‘blind-transfer’
This specifies the SIP verb to use while transferring the call. - ‘refer’: Uses SIP REFER to transfer the call (default) - ‘bye’: Ends current call with SIP BYE - ‘dial’: Uses SIP DIAL to transfer the call