Grandstream HT503 User Manual - Manual (Page 20)

FIRMWARE VERSION 1.0.14.1 HT503 USER MANUAL Page 18 of 64
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 configu ration 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 IP address to make a direct IP call, after dial tone. (See
“Make a Direct IP Call”.)
86 Voice Mail
Number of voice mails
99 “RESET”
Press “9” to reboot the device; or
Enter encoded MAC address to restore factory default setting (See
“Restoring Factory Settings”)
“Invalid Entry”
Automatically returns to main menu
NOTE:
 “*” shifts down to the next menu option
 “#” returns to the main menu
 “9” functions as the ENTER key in many cases to confirm an option

All entered digit sequences have known lengths - 2 digits for menu option. For IP address, the "*"
key represent the dot "." (Like 192.168.0.26 should be key in like 192*168*0*26). Once all of the
digits are collected, the input will be processed.

Key entry cannot be deleted but the phone may prompt error once it is detected