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Open Numbers → Number pools. Pools group numbers for rotating outgoing calls. A campaign or an event-to-call workflow can dial from a pool instead of one caller ID. A phone number can belong to one pool at a time. A pool can only contain numbers from a single connection.

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Create a pool

1

Open Number pools

Go to Numbers → Number pools and select Create pool.
2

Name the pool

Use a name your team will recognize, for example collections pool.
3

Choose a connection

Select the provider account or SIP trunk that owns the numbers. Only that connection’s numbers can join the pool.
4

Select numbers

Choose at least one number. Status Available · unassigned means the number is in the space and not already in this pool.
Empty state: No pools yet / Pools group numbers for rotating outgoing calls.

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Manage members

Open a pool to Add numbers, Remove from pool, or Rename pool. Removing a number from a pool keeps the number in the workspace. Deleting a pool does the same: numbers stay, they just leave the pool. You cannot add a number that already belongs to another pool until you move it. The public API can move a member from its current pool into the target pool.

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Use a pool on outbound work

Validate outbound trunks before you send production traffic. The API reports valid and invalid member counts. See Number Pools API.
Confirm every member is active, ready, and allowed to call the destination countries before you assign the pool.