Panasonic KX-NCP1000 - Troubleshooting Guide

Explanation:
An outside caller dials "123-4567". The call reaches the destination (extension 1011 of PBX-1), and the
call is forwarded, transferred, or intercepted to extension "2011" of PBX-2 through the TIE line.
238 Feature Manual Document Version 2013-05
13.1.15 PRIVATE NETWORK FEATURES