Advanced  Phone  Features 
215 
Retrieving a Held Call 
If there is a held call between phone A and phone C, you can retrieve a held call on either phone 
A or phone B. 
To retrieve the held call on phone A:   
1.  Press the line key with the slow-flashing green LED indicator,            or the Resume soft key 
on the phone A. 
The conversation between phone A and phone C is retrieved. 
To retrieve the held call on phone B: 
1.  Press the line key with the slow-flashing red LED indicator on phone B. 
The conversation is established between phone B and phone C, phone A disconnects the 
call. 
Messages 
Short Message Service (SMS) 
You can send and receive text messages using the SIP-T54S media IP phone. New text messages 
can be indicated both acoustically and visually. When receiving a new text message, the phone 
will play a warning tone. The power indicator LED will slowly flash red, and the LCD screen will 
prompt “n New Text Message(s)” (“n” indicates the number of unread text messages. e.g., 1 New 
Text Message(s)) and an icon          . 
 
Note   
   
When the phone receives a text message, the text message prompt window will pop up by 
default, if you want to disable the feature, contact your system administrator for more