The MessageBird Voice Calling service offers VoIP features for handling phone calls from/to a voice capable number that is purchased via MessageBird. The API uses HTTP verbs and a RESTful endpoint structure with an access key that is used as the API Authorization. Request and response payloads are formatted as JSON using UTF-8 encoding and URL encoded values. MessageBird is a cloud communications platform with SMS, Voice, and Chat APIs that connect you to 7 billion phones globally.
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