> ## Documentation Index > Fetch the complete documentation index at: https://help.withallo.com/llms.txt > Use this file to discover all available pages before exploring further. # Overview > Manage Power Dialer queues programmatically The Power Dialer API lets you manage a user's queue — append numbers, configure it, clear or reset it, and read its state. Each user has at most one active Power Dialer queue at a time. The queue is created implicitly the first time you append numbers or call reset. ## Required scope All endpoints require the `DIALING_QUEUE_READ_WRITE` scope on your API key. ## Assigning a queue to a teammate Every endpoint accepts `user_id` or `email` to act on a teammate's queue instead of the API key owner's. The wire location depends on the endpoint (query string vs JSON body) — see each endpoint's "Targeting a teammate's queue" section for specifics. Rules that apply to every endpoint: * `user_id` wins when both `user_id` and `email` are provided. * The teammate must belong to the same team as the API key owner. * If the resolved user doesn't exist or isn't a teammate, the API returns `404 ASSIGNEE_NOT_FOUND`. The same error covers both cases on purpose, so API consumers cannot enumerate users. * When you append to a teammate who has no current queue, one is created with the API key owner as `creator_id` and the teammate as `assignee_id`. ## Endpoints Retrieve the queue assigned to a user (yourself or a teammate) Update the queue name, voicemail handling, or do-not-disturb Add phone numbers (and optional contact metadata) to a queue Remove specific numbers, a position, or every unassigned entry Discard the current queue and start a fresh one