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Every account starts with one line and no number of its own. Both change by email, not by a setting.

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One call at a time

Your account can have one phone call live at a time. Inbound and outbound share that one line. There is nothing to set in the portal or the API. If you need more, email founders@upliftai.org with your use case and expected call volume. Limits go into the thousands of lines.

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What happens when you hit it

  • A direct API call gets a 429 and nothing is dialed. Wait for the live call to end. Then dial again.
  • A campaign never gets a 429. A dial that collides with your limit goes back to the queue with a wait, and the attempt counts. Leave the campaign’s dialing.lines at 1 until your limit is raised.
  • An inbound call is never turned away for this limit, but it holds your line while it runs.
  • A second call to the same person gets a 409 with number_busy. That is a per-person rule and applies whatever your limit is.
The 429 body:

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Which number your customer sees

Outbound calls go out from a random Pakistani number in our pool, so a customer may see a different one on each call.

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A number of your own

A dedicated number is assigned on request: email founders@upliftai.org and we set one up within a day. Depending on your setup the same number can take inbound calls too.