Grandstream Networks DUAL FXS PORT HT502 User Manual page 35

Call Progress Tones
Prompt Tone Access
Code
Lock Keypad Update
Disable Voice Prompt
Disable Direct IP Call
NTP server
NTP Update Interval
Syslog Server
FIRMWARE VERSION 1.0.6.8
Using these settings, users can configure tone frequencies and cadence according to
their preference. By default they are set to North American frequencies. Configure these
settings with known values to avoid uncomfortable high pitch sounds. ON is the period of
ringing ("On time" in 'ms') while OFF is the period of silence. In order to set a continuous
tone, OFF should be zero. Otherwise it will ring ON ms and a pause of OFF ms and then
repeat the pattern.
Example configuration for N.A. Dialtone:
f1=350@-13,f2=440@-13,c=0/0;
Syntax: f1=freq@vol, f2=freq@vol, c=on1/off1-on2/off2-on3/off3; [...]
(Note: freq: 0 - 4000Hz; vol: -30 - 0dBm)
Key pattern to get Prompt Tone. Maximum 20 digits. No Default.
If set to "Yes", the configuration update via keypad is disabled.
Default is No. Disables the voice prompt configuration.
Default is No. Disables the Direct IP Call function.
URI or IP address of the NTP (Network Time Protocol) server. This parameter
synchronizes the date and time.
Updates the Network Time Protocol (Values range from 5 – 1440 minutes)
The IP address or URL of System log server. This feature is especially useful for the ITSP
(Internet Telephone Service Provider)
HT502 USER MANUAL Page 35 of 50