Hitachi HCX5000I - Manual (Page 40)

C HAPTER 1: A BOUT Y OUR S ELEC S ET 500A P LACING A N O UTSIDE C ALL
HCXTD840, Issue 1, July 2001 1-29
Placing An Outside Call
Procedure To place an outside call for another station to which you
are connected:
1 Dial the trunk access code (normally 9), and then dial
the number.
2 When the dialed number begins to ring, press
<JOIN>.