Voicemail and beep detection
Voximplant enables developers to detect voicemail using the answering machine detection module. Additionally, you can detect beeps with a specified frequency.
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Voicemail and answering machine detection
This feature employs artificial intelligence to discern whether you are speaking to a live person, a pre-recorded voicemail prompt, or a conversational AI robot during an outgoing call. Depending on the outcome, it adapts its behavior, such as playing a pre-recorded message and leaving it in the voicemail inbox.
Voicemail detection, a machine learning-based technology, continuously improves, resulting in enhanced service over time.
Currently, the voicemail detection feature is available for the following countries: Brazil, Colombia, Kazakhstan, Mexico, and Russia. If your country is not on the list, and you need the voicemail/answering machine detection feature, please contact support.
As an example, let us call a phone number, and if AMD detects a voicemail, play an MP3 message into the inbox.
Voicemail detection works for any type of call, including SIP calls. Use it the same way as calling phone numbers.
*Alternatively, instead of creating an AMD instance first and then passing it as a parameter to the call, you can create an AMD instance within the call itself. There are two methods for doing this: event-based and async-await. Here is an example of the event-based approach:
Here is the async-await scenario example of creating an AMD instance within a call:
Beep detection
The beep detector functionality in VoxEngine scenarios allows developers to detect beeps with a specified frequency.
To detect beeps, use the following methods:
enableBeepDetection({frequencies, timeout}) — enables beep detection for the current call. Accepts an object with two parameters:
frequencies— an array of frequencies.timeout— a timeout to detect beeps in milliseconds.
disableBeepDetection() — disables beep detection for the current call.
The following events help you to process the received frequences:
BeepDetectionComplete — triggered after a beep detection occurred. The event object contains two parameters:
frequencies— an array of detected frequencies, at least one.timeout— whether the detection timeout is reached, boolean. This parameter is undefined if the beep is detected successfully, true if the timeout is reached, and false if beep detection is disabled.
BeepDetectionError — triggered after a beep detection fails with an error. The event object contains one parameter: reason.
Here is the complete scenario example on how to use these methods and events: