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Numbers is where the phone numbers live. An agent needs one to place outbound calls, and an inbound agent needs one pointed at it before anybody can reach it.

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What the top of the page tells you

Three figures sit above the table, and they answer different questions. Buy more takes you to Billing, because the number allowance comes with your plan rather than being bought a number at a time. Edit allocation opens the environment’s settings, where Max Purchasable Numbers sets this environment’s cap. The same dialog holds Max Concurrent Calls, which is the other limit people run into.
Numbers belong to an environment. A number bought in one environment is not available in another, which is usually what you want, and occasionally a surprise.

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Adding a number

Buy new gets you a fresh number from a provider. Choose the Provider, then open Number and pick from the available list. You can search it, tick several, or use Select all to take a batch at once. Link existing connects a number you already own elsewhere. You supply the provider and the phone number rather than choosing from a list.
Link existing needs a connected telephony account. Connect it under Integrations first, then pick it as the Account Connection when you link the number. See Providers and connections.

Connect your Twilio account under Integrations

Link a Twilio number you already own

Either way, two optional fields are worth filling in as you go. Inbound Agent is the agent that answers calls to this number. Leave it empty and the number can still place outbound calls, but nothing happens when somebody rings it. Tags are how campaigns pick a caller ID. A campaign can select numbers by tag rather than one at a time, so tagging by region or by purpose as you buy saves work later.

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The table

Filter by agent or by tags, search by digits, and switch the status filter between In Use, Archived and All.

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Call pacing

This is the setting that most people need and few people find.
Call pacing settings, with Limit call frequency ticked and fields for minutes between calls and calls per hour for each number
Tick Limit call frequency and you get two controls, both applied per number.
  • Wait N minutes between calls. A cooldown after each call.
  • No more than N calls every N hours. A ceiling over a window.
Carriers flag numbers that dial hard and fast, and a flagged number starts showing up as spam on people’s handsets. Pacing is how you avoid that. Click Save to apply.
Pacing is per number, so the way to get more volume without dialing any single number harder is to buy more numbers and spread the traffic. Roughly 100 calls per day per number is a reasonable ceiling.

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Removing a number

Two different actions, and the difference matters. Archive unassigns the number from its agent. Calls to it stop reaching that agent, but you keep the number. Schedule delete gives the number up for good.
Archive if you are unsure. Deleting releases the number, and you will probably not get the same one back.

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Where to go next

  • Point a number at an agent: Agents
  • Use tags to choose a caller ID: Campaigns
  • Environment caps and keys: Settings
  • Stop calling people who asked you not to: DNC List