User Guide

Grandstream Networks, Inc.  HT-502 User Manual  Page 9 of 32 
  Firmware Version 1.0.4.2 Last Updated: 06/2011 
BASIC OPERATIONS 
Understanding HT502 Voice Prompt 
HT502 has a built-in voice prompt menu for simple device configuration. The IVR menu and the LED 
button work with any of the FXS port. Pick up the handset and dial “***” to use the IVR menu. 
T
ABLE 5: HT502 IVR MENU DEFINITIONS 
Menu  Voice Prompt  Options 
Main Menu 
“Enter a Menu Option” 
Press “*” for the next menu option 
Press “#” to return to the main menu 
Enter 01-05, 07,10, 12-17,47 or 99 menu options 
01 
“DHCP Mode”, 
“Static IP Mode” 
Press “9” to toggle the selection 
If using “Static IP Mode”, configure the IP address information using 
menus 02 to 05. 
If using “Dynamic IP Mode”, all IP address information comes from 
the DHCP server automatically after reboot. 
02 
“IP Address “ + IP address  The current WAN IP address is announced 
If using “Static IP Mode”, enter 12 digit new IP address. You need to 
reset the HT to take affect the new IP address. 
03 
“Subnet “ + IP address  Same as menu 02 
04 
“Gateway “ + IP address  Same as menu 02 
05 
“DNS Server “ + IP address  Same as menu 02 
07 
 Preferred Vocoder 
Press “9” to move to the next selection in the list: 
•  PCM U / PCM A 
• iLBC 
• G-726 
• G-723  
•  G-729 
10 
“MAC Address”  Announces the Mac address of the unit. 
12 
WAN Port Web Access 
Press “9” to toggle between enable / disable  
13 
Firmware Server IP 
Address 
Announces current Firmware Server IP address. Enter 12 digit new 
IP address. 
14 
Configuration Server IP 
Address 
Announces current Config Server Path IP address. Enter 12 digit 
new IP address. 
15 
Upgrade Protocol  Upgrade protocol for firmware and configuration update. Press “9” to 
toggle between TFTP / HTTP / HTTPS 
16 
Firmware Version  Firmware version information. 
17 
Firmware Upgrade  Firmware upgrade mode. Press “9” to toggle among the following 
three options: 
 - always check 
 - check when pre/suffix changes 
 - never upgrade 
47 
“Direct IP Calling” 
Enter the target IP address to make a direct IP call, after dial tone.  
(See “Make a Direct IP Call”.) 
70 
Phone calls between FXS 1 
and FXS 2 port 
User can make internal calls between two FXS ports on the same 
HT502 even without being registered to SIP server. By dialing *** and 
70 user can reach the other FXS port 
86 
Voice Mail  Number of Voice Mails 










