User Guide for the SIP-T28P IP Phone 
84 
To place a call on hold:   
1.  Press            or the Hold soft key during a call. 
The LCD screen indicates that the call is on hold and the line key LED flashes green. 
 
Note 
To resume a held call: 
1.  Press            or the Resume soft key. 
Multiple Calls on Hold: 
If multiple calls are placed on hold, do one of the following: 
-  Press          or          to switch between the calls, and then press the Resume soft key to 
retrieve the desired call. 
-  Press the corresponding line key to retrieve the desired call. 
A numbered prompt appears on the LCD screen, for example "2/4", indicating that this is 
the second call out of four calls. 
You can use DND to reject incoming calls automatically on the phone. The prompt 
message "n New Missed Call(s)" ("n" indicates the number of missed calls) will appear 
on the LCD screen, and callers will receive a busy message. All calls you receive while 
DND is enabled are logged to your missed calls list. 
Note 
You can enable/disable DND for the phone system, or you can customize DND for each 
or all accounts. Two DND modes: 
The phone will beep softly every 30 seconds to remind you that you still have a call on 
hold. 
The prompt message will display only if Missed Call Log for the line is enabled. Missed 
Call Log is configurable via web user interface at the path Account->Basic. 
Do Not Disturb is local to the phone, and may be overridden by the server settings. For 
more information, contact your system administrator.