The Panasonic KX-TDA6381 is a 16-port analog central office (CO) trunk card. It does not support Caller ID (CLID) and is primarily designed to expand the legacy analog trunk capacity of large Panasonic PBX systems, such as the KX-TDA, KX-TDE, and KX-NS series (e.g., KX-TDE600, KX-NS1000).
