> ## Documentation Index
> Fetch the complete documentation index at: https://docs.invoca.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Adjusting RingPool Capacity

> Increase a campaign's promo number limit beyond the default of five, if you have Manager-level permissions or higher.

Promo numbers are the Invoca phone numbers displayed to visitors on your ads and landing pages, which route to your call center. By default, each campaign is allotted a maximum of five promo numbers.

**Before you begin:** You need Manager-level permissions or higher on a Network account. If you don't have these permissions, reach out to whoever manages your Invoca account's settings.

## Adjusting your campaign's promo number limit

1. Log in to Invoca on a Network account with Manager-level permissions or higher.
2. In the sidebar menu, click **Campaigns**, then select **Manage Campaigns**.
3. Select the campaign you'd like to edit, then click the **Promo Numbers** tab.
4. Scroll to the bottom of the page and click the pencil icon next to **Promo Numbers Allowed**.
5. Enter the new number of promo numbers for this campaign, then click **Submit**.

Your campaign now has access to the new number of promo numbers you selected.

## Where to go next

* [Local RingPools](/s/article/local-ringpools)
* [Adding Local Promo Numbers](/s/article/adding-local-promo-numbers)