User Guide for the SIP-T28P IP Phone 
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4.  Press the Save soft key to accept the change or the Back soft key to cancel. 
Note 
To listen to voice mails: 
1.  When the LCD screen prompts that the phone receives a new voice mail, press           
or the Connect soft key to dial out the voice mail access code. 
2.  Follow the voice prompt to listen to your voice mails. 
Note 
To view voice mails via phone user interface: 
1.  Press Menu->Messages->Voice Mail->View Voice Mail. 
The LCD screen displays the amount of new and old voice mails. 
 
2.  Select an account and then press the Connect soft key to listen to voice mails.   
The SIP-T28P IP phone supports MWI feature when receiving a new voice message. If 
someone leaves you a voice mail, you will receive a message waiting indicator. MWI 
will be indicated in three ways: a warning tone, a prompt message (including a voice 
mail icon) on the LCD screen, and the MESSAGE key LED illuminates solid green. This 
will be cleared when you retrieve all voice mails or delete them. 
The MWI service is unsolicited for some servers, so the SIP-T28P IP phone only handles 
the MWI messages sent from the server. But for other servers, the MWI service is 
solicited, so the SIP-T28P IP phone must enable subscription for MWI. 
Note 
Voice mail access codes must be predefined on the system server. Contact your system 
administrator for the more information. 
MWI service is not available on all servers. Contact your system administrator for more 
information. 
Before listening to voice mails, make sure the voice mail access code has been 
configured. 
When all new voice mails are retrieved, the MESSAGE key LED will go out.