Grandstream Networks Grandstream HandyTone HandyTone-488 User Manual

4 

 
HandyTone-488 Analog Telephone Adaptor is an all-in-one VoIP integrated device designed 
to be a total solution for networks providing VoIP services.  
 
The HandyTone-488 VoIP functionalities are available via a regular analog telephone.  
 
The following photo illustrates the appearance of a HandyTone-488. 
 
 

Top View 

Side Views 

 

 

 

 

 

 
Interconnection Diagram of the HandyTone-488: 
 
 
 

 
 
 

 
 
 
 
 
 
 
 
 

 

Fax 

Cordless Phone 

Analog Phone 

Internet ADSL/Cable 

Modem Ethernet 

PSTN 

PC 

PC 

PC 

LAN

WAN

FXO 

FXS