Grandstream Networks HT502 - Manual (Page 21)

Grandstream Networks, Inc. HT-502 User Manual Page 21 of 31
Firmware Version 1.0.1.21 Last Updated: 12/2008
Firmware Key Used for firmware encryption. Should be 32 digit in hexadecimal representation. End
user should keep it blank.
Authenticate Conf File If set to Yes, config file is authenticated before acceptance. This protects the
configuration from an unauthorized change.
Firmware Key Used for firmware encryption. Should be 32 digit in hexadecimal representation. End
user should keep it blank.
SSL Certificate The user specified SSL certificate used for SIP over TLS in X.509 format.
SSL Private Key The user specified SSL private key used for SIP over TLS in X.509 format.
SSL Private Key
Password User specified password to protect the private key above.
System Ring Cadence Configuration option is set ring cadence on all FXS ports for all incoming calls. (Syntax:
c=on1/off1-on2/off2-on3/off3; [...]) Default is set to c=2000/4000; (US standards)
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)
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.
Syslog Server The IP address or URL of System log server. This feature is especially useful for the ITSP
(Internet Telephone Service Provider)