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Overview

Firstwork integrates with Twilio (and alternative providers Plivo and Exotel) for SMS messaging and voice calling. This powers candidate notifications, reminders, two-factor authentication, and AI caller functionality.

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Supported Providers

ProviderSMSVoiceRegions
TwilioYesYesGlobal
PlivoYesYesGlobal
ExotelYesYesIndia, SEA

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Setup

1

Get your credentials

From your Twilio Console:
  • Account SID
  • Auth Token
  • Phone number(s)
2

Configure in Firstwork

Go to Settings > Integrations > SMS in the Firstwork dashboard and enter your Twilio credentials.
3

Configure phone numbers

Set up sending phone numbers in the Firstwork dashboard under Settings > Communication.

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SMS Messaging

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Send SMS Action

The Send SMS action in automations:
ConfigurationDescription
RecipientPhone number (from application/contract data)
MessageText content with variable support
ProviderTwilio, Plivo, or Exotel (auto-selected by region)

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Template Variables

SMS templates support Object Graph variables: 
Hi {{application.candidate.first_name}}, your 
application for {{application.hiring_flow.name}} 
has been received. Track your progress at: 
{{application.magic_link}}

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Common SMS Automations

  • Application status notifications
  • Interview reminders
  • Document upload reminders
  • Onboarding instructions
  • Emergency notifications

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Voice Calling

Voice capabilities power the AI Caller module:
  • Outbound calls to candidates
  • AI-driven conversations
  • Call recording and transcription
  • Response extraction and form mapping

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Provider Selection

Firstwork automatically selects the best provider based on:
  • Candidate’s phone number country code
  • Cost optimization
  • Delivery reliability
  • Feature requirements (voice vs. SMS)
You can also configure preferred providers per region in your company settings.

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Delivery Tracking

SMS delivery status is tracked and available in automation execution logs:
  • Queued
  • Sent
  • Delivered
  • Failed (with error reason)