Grandstream Networks Handy Tone 386 User Manual

10 

 
 To make a phone or extension number call: 

a) Dial the number directly and wait for 4 seconds (default “No Key Entry Timeout”).  Or 
b) Dial the number directly, and press # (assuming that “Use # as dial key” is selected in web 

configuration). 

 
Other functions available during the call are call-waiting/flash, call-transfer, and call-forward. 

 
Direct IP calling allows two phones, that is, a HandyTone with an analog phone and another VoIP 
Device, to talk to each other in an ad hoc fashion without a SIP proxy. VoIP calls can be made between 
two phones if: 
 

•  Both HandyTone ATA and the other VoIP device (i.e., another HandyTone ATA or other SIP 

products) have public IP addresses, or  

•  Both HandyTone ATA and the other VoIP device (i.e., another HandyTone ATA or other SIP 

produces) are on the same LAN using private or public IP addresses, or  

•  Both HandyTone ATA and the other VoIP device (i.e., another HandyTone ATA or other SIP 

products) can be connected through a router using public or private IP addresses.  

 
To make a direct IP call, first pick up the analog phone or turn on the speakerphone on the analog 
phone, follow Section 5.1 with voice prompt 47, followed by the 12-digit target IP address. Destination 
ports can be specified by using “*4” (encoding for “:”) followed by the encoded port number.   
Following is a table of the encoding scheme for the most commonly used characters: 
 
 
 

 

00 0 
01 1 
02 2 
03 3 
04 4 
05 5 
06 6 
07 7 
08 8 
09 9 
*0 

. (dot character) 

*4 

: (column character)