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Zernio

Communication API

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An API that allows users to send WhatsApp messages, SMS, and make calls from a single number, with a unified inbox for replies.

CPaaS (SMS, Voice & WhatsApp APIs)

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Features

Enable inbound and outbound calling with a single API call
Route incoming calls to AI agents, phones, or custom SIP URIs
Provide browser-based calling without the need for a phone
Record and transcribe calls automatically
Set inbound call rules for voicemail, business hours, and call blocking
Track call history and access call recordings
Estimate call costs before dialing
Subscribe to call lifecycle events via webhooks

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