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Phone Playback

Make an automated call to any valid phone number and playback an audio message.

Use this API to make important broadcasts or notifications by playing back pre-recorded or generated audio files.

The telephony APIs can operate in two modes, you can place your calls using our VOIP service or your can provide your own SIP trunk. Using your own SIP trunk allows you to use your own DIDs so recipients can place calls back to you. You can also setup voice mail and any other features your VOIP service provider might have.

Our Calling Rates

To enable unrestricted use of this API you must have a verified account.

End Point

https://neutrinoapi.com/phone-playback
Test API
API Request
ParameterRequiredTypeDefaultDescription
numberYesstringThe phone number to call. Must be in valid international format
audio-urlYesstringA URL to a valid audio file. Accepted audio formats are:
  • MP3
  • WAV
  • OGG
You can use the following MP3 URL for testing:
https://www.neutrinoapi.com/test-files/test1.mp3
API Response
ParameterTypeDescription
callingbooleanTrue if the call is being made now
number-validbooleanTrue if this a valid phone number