Common Trunk Group is a trunk group that carries calls that originates from more than one service type or more than one carrier.

Also known as:

Shared Trunk Group

Relevant NENA Documents
Note: To find and download the document, copy the document number (like NENA-STA-010) from below and search the NENA Standards and Documents page.

NENA 03-508, NENA Impacts of Using a Common Trunk Group to Carry Calls of Multiple Service Types into a Legacy Selective Router Technical Information Document (TID)