Manage Call Rules, Numbers, and Admin Access in Power Trunk
Learn how to configure Inbound and Outbound Call Rules, set your Main Trunk Number, and assign team members to a trunk in Power Trunk.
Written by B3Networks Academy
Updated at November 12th, 2026
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Use the Call rules, Number, and Admin sections at the bottom of your Power Trunk page to format incoming and outgoing numbers, set your default outbound Caller ID, and give team members access to manage the trunk.
Prerequisites
Make sure your organization has an active Power Trunk subscription, assigned phone numbers, and required user permissions.
Configure Inbound and Outbound Call Rules
You can apply one Inbound call rule and one Outbound call rule to your trunk regardless of whether it connects to a SIP PBX or a third-party app:
- Scroll to the Call rules section on your Power Trunk page.
- Select or create an Inbound Call Rule (to format incoming caller or callee digits before the call reaches your PBX/app) and an Outbound Call Rule (to format dialed numbers and Caller ID on outgoing calls).
- Use the Match / Transform / Test preview to test a sample phone number, then select Save.
Manage Assigned Numbers and Main Trunk Number
Scroll to the Number section to manage the phone numbers on your trunk:
- Main Trunk Number: Select the primary phone number for this trunk. This number is displayed on the trunk header and is used as your fallback outbound Caller ID whenever an outgoing call sends a Caller ID that is not on your organization's purchased number list.
- Assigned DIDs table: View all phone numbers assigned to this trunk along with each number's carrier Provider.
To move a phone number to or from a trunk, go to Manage Organization > Numbers, select the Edit (pencil) icon next to the number, and choose the target Power Trunk.
Assign Admins and Members to a trunk
Organization Owners (and administrators with modify permissions) can give specific Admins or Members access to manage an individual trunk without granting them access to all trunks in the organization:
- Scroll to the Admin section (Assigned Members) at the bottom of the trunk page.
- Select Assign users.
- Search for and select the Admin or Member users you want to authorize, then confirm.
- Assigned users will see Power Trunk in their portal sidebar and can view and edit only the trunk(s) they are assigned to.
- To remove a user's access, remove them from the Admin section list.