Greeting

This activity allows a caller to provide input by entering a digit or speaking, similar to the Dial menu activity. It allows the workflow to collect input from the caller and then process it for cases that do not require a selection menu. For example, collecting speech from the caller and passing it to an AI Chatbot.

Table 1. Greeting action - Inputs
Parameters	Description
CallId	Enter the unique identifier for the active call.
AudioSource	Enter the name of the prompt to be played if the option to "Use existing greeting" is selected.
TTSText	Enter the text to be played to the caller if the option "Text to speech" is selected.
TTSVoice	Enter the voice to be used to play the TTS text if the option "Text to speech" is selected. For the complete list of supported languages and voices for Text-to-Speech (TTS), refer to the Amazon Polly Developer Guide.
CallLeg	Select the call leg on which the message will be played. The options are Caller, Callee, or Both.
MinDigits	Enter the minimum number of digits required to be entered. If no digits are expected, the value should be 0.
MaxDigits	Enter the maximum number of digits that can be entered. If no digits are expected, the value should be 0.
RepeatTimes	Enter the number of times a greeting will be repeated, if the caller is expected to respond to the greeting and no response is received before the timeout.
TerminateOnAbandon	Select True or False to specify whether the workflow will exit if the caller hangs up.
TerminatingDigit	Enter the digit to terminate the workflow, even if the timeout has not been reached or the maximum number of allowed digits has not been entered.
EnterDigitTimeoutSeconds	Enter the number of seconds the workflow will wait for the response (digits or ASR) before timing out.
UseASR	Select True or False to specify whether the caller can respond to the greeting with speech.
ASRLanguage	If `UseASR` is enabled, enter the language to be used for ASR. For the complete list of supported languages and voices for ASR, refer to the Amazon Transcribe Developer Guide.
ResetRepeatCount	Select True or False to specify whether the `RepeatTimes` value will be reset when the action starts. It is useful if a GoTo action is used to point back to the Greeting action so that the repeat count can be continued from the previous iteration and not reset.
ASRInitialSilenceDetection	If `UseASR` is enabled, enter the number of milliseconds to wait for the caller to begin speaking after the message plays before terminating the activity due to no response. If the value is greater than 0, the length of the message will automatically be added to this value so that the system will wait for the greeting to complete and then apply the `ASRInitialSilenceDetection` value. If the value is 0, the system will wait up to 5 minutes for a response before terminating the activity. The value can range from 100-59000 milliseconds.
ASRSilenceDetection	If `UseASR` is enabled, enter the number of milliseconds of silence allowed before speech detection terminates. The value can range from 100-59000 milliseconds.
AllowBargeIn	Select True or False to specify whether caller input through DTMF digit entry or ASR will be accepted before the greeting completes. If the value is set to True, the caller is allowed to begin speaking or enter digits during the greeting, which will cancel the greeting and process the caller's input. If the value is set to False, the caller has to listen to the entire greeting before any caller input is accepted.

Table 2. Greeting action - Outputs
Parameters	Description
CollectedDigits	Teturns the digits entered by the caller.
Success	Indicates whether the activity was completed successfully (value = True) or not (value = False)
Result	Returns the JSON formatted response from the activity.
TimesRepeated	Indicates the number of times that the greeting was repeated. A greeting will be repeated if a response is expected from the caller and is not received before the timeout.
CollectedSpeech	If an ASR response was received from the caller, this parameter returns the speech spoken by the caller.

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