Grandstream HT502 User Manual - Manual (Page 49)

FIRMWARE VERSION 1.0.14.1 HT502 USER MANUAL Page 47 of 54
If call volume is too low when using the FXS port (ie. the ATA is at user site), adjust
volume using the Rx Gain Level parameter under the FXS Port Configuration page.
If voice volume is too low at the other end, user may increase the far end volume using
the Tx Gain Level parameter under the FXS Port Configuration page.
Disable Line Echo
Canceller (LEC)
Default is No. If set to “Yes” LEC will be disabled per call base. Recommended for
FAX/Data calls.
Ring Tones This function lets you configure ring tone cadence preferences. User has 10 choices.
The configuration, completed in Distinctive Ring Tones block in the same page, applies
to ring tones cadences configured here.
Blacklist For Incoming
Calls
Configure the phone numbers which will be blocked from incoming calls. (Max 8
numbers can be configured for each FXS port)
SAVING THE CONFIGURATION CHANGES
C lick the “Update” button in the Configuration page to save the changes to the HT502 configuration. The
following screen confirms that the changes are saved. Reboot or power cycle the HT502 to make the
changes take effect.
REBOOTING THE HT502 FROM REMOTE
Press the “Reboot” button at the bottom of the configuration menu to reboot the ATA remotely. The web
browser will then display a message window to confirm that reboot is underway. Wait 30 seconds to log in
again.
CONFIGURATION THROUGH A CENTRAL SERVER
Grandstream HT502 can be automatically configured from a central provisioning system.
When HT502 boots up, it will send TFTP or HTTP/HTTPS requests to download configuration files,
“cfg000b82xxxxxx” and “cfg00082xxxxxx.xml”, where “000b82xxxxxx” is the LAN MAC address of the
HT502. If the download of “cfgxxxxxxxxxxxx.xml” is not successful, the provision program will issue
request a generic configuration file “cfg.xml”. Configuration file name should be in lower case letters.
The configuration data can be downloaded via TFTP or HTTP/HTTPS from the central server. A service
provider or an enterprise with large deployment of HT502 can easily manage the configuration and
service provisioning of individual devices remotely from a central server.