Grandstream Networks HT502 - Page 46

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HT502 User Manual
Call Progress Tones
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)
Prompt Tone
Access Code
Key pattern to get Prompt Tone. Maximum 20 digits. No Default.
Phone LED Pattern
Choose LED Pattern rules:
Pattern A (Onhook: OFF; Offhook: ON; VM: Blink)
Pattern B (Onhook: ON; Offhook: OFF; VM: Blink if phone onhook)
Lock Keypad
Update
If set to “Yes”, the configuration update via keypad is disabled.
Disable Voice
Prompt
Default is No. Disables the voice prompt configuration.
Disable Direct IP
Call
Default is No. Disables the Direct IP Call function.
NTP server
URI or IP address of the NTP (Network Time Protocol) server. This parameter
synchronizes the date and time.