Connect JustCall to any app

• Action
  Add Contact to Sales Dialer Campaign

  Adds a contact to a JustCall Sales Dialer campaign. Identify the contact by its Sales Dialer contact ID or by phone number; if the phone number does not match an existing contact, a new contact is created and added. Details passed for an existing contact update that contact.

• Action
  Add Sales Dialer Campaign

  Creates a new Sales Dialer campaign.

• Action
  Delete Contact From Sales Dialer Campaign

  This action allows you to delete a contact from an existing Sales Dialer Campaign

• Action
  Find Contact

  Returns the JustCall contacts that match the specified phone number and/or first and last name.

• Action
  Get Contact

  Retrieves a single JustCall contact by its id.

• Action
  List Contacts

  Lists contacts in the JustCall account, optionally filtered by agent, phone number, name or status. Returns up to 500 contacts.

• Action
  List Phone Numbers

  Lists the phone numbers on your JustCall account, optionally filtered by type, capability, owner, sharing or business hours setting.

• Action
  List Sales Dialer Campaigns

  Returns all Sales Dialer campaigns on the account.

• Action
  List Users

  Lists the users in your JustCall account, optionally filtered by availability, email, user group or role.

• Action
  Update Contact

  Updates an existing contact in JustCall's Contacts, located by its id or its primary phone number. Contact status (DND/DNM/Blacklist) cannot be changed with this action.

No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.