Call Features63Placing External CallsYou can place external calls on the handset. External calls based on the public telephonenetwork require the use of SIP lines. Your system administrator needs to assign the SIP line tothe handset beforehand, and then assign the line to the handset as the outgoing line. For moreinformation on the outgoing line, refer to Outgoing Lines on page 50.NoteTo place an external call via the handset:1. Do one of the following:- Enter the desired number using the keypad.- Press to enter the pre-dialing screen.Enter the desired number using the keypad.If there are multiple lines assigned to your handset as outgoing lines, press the Linesoft key to select the desired line.If you do not select a line, the handset uses the default outgoing line to dial out.2. Press , or to dial out.You can place at most two calls on your handset. You can also place an internal call during anexternal call.To place a new external call during an active call via the handset:1. Press the New Call soft key.The active call is placed on hold.2. You can do the following:- Enter the desired number using the keypad.- Press to select a contact from Directory.- Press the Option soft key, and then select an entry from Redial List.- Press the Option soft key, and then select a desired line from Select Line whenmultiple lines are assigned.3. Press , or to dial out.Note You can also make an IP call by directly dialing the IP address of any IP phone. For example, youcan enter 192*168*1*15 to dial the IP 192.168.1.15.The handset must be subscribed and registered to the same base station to place a call. For moreinformation on registration, refer to Handset Registration on page 19.