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CallCow uses Twilio to handle phone calls. To connect your own Twilio account, you’ll need to get a phone number and API credentials.

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Getting a Twilio Phone Number

  1. Sign up for a Twilio account at twilio.com
  2. Once logged in, go to Phone Numbers > Manage > Buy a number
  3. Search for a number by country, area code, or capabilities (Voice, SMS)
  4. Click Buy to purchase the number
  5. Copy the phone number and add it to your CallCow workflow settings

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Getting Your Twilio API Credentials

  1. Log in to the Twilio Console
  2. On the dashboard, locate your Account SID and Auth Token
  3. Click the eye icon to reveal your Auth Token
  4. Copy both the Account SID and Auth Token
  5. Paste these credentials into CallCow’s Twilio integration settings
Note: Keep your Auth Token secret. Never share it publicly or commit it to version control.

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Concurrent Calls Limit

CallCow uses Twilio for phone calls. By default, Twilio accounts have the following limits:
Account TypeCalls Per Second (CPS)Concurrent Calls
Trial1 CPS4
Upgraded (without Business Profile)1 CPSLimited
Upgraded (with Business Profile)ConfigurableUnlimited
Key points:
  • CPS limits only apply to outbound API calls, not inbound calls
  • If you need higher throughput, you can increase your CPS limit in the Twilio Console Voice Settings page (requires an approved Business Profile)
For more details, see Twilio’s documentation on call limits.