User Guide

Grandstream Networks, Inc. HT-502 User Manual Page 20 of 31
Firmware 1.0.0.29 Last Updated: 01/2007
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.
Lock Keypad Update
If set to “Yes”, the configuration update via keypad is disabled.
NTP server
URI or IP address of the NTP (Network Time Protocol) server. Used by the
phone to synchronize 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)
Syslog Level
Select the HT–502 to report the log level. Default is NONE. The level is one of
DEBUG, INFO, WARNING or ERROR. Syslog messages are sent based on
the following events:
1. product model/version on boot up (INFO level)
2. NAT related info (INFO level)
3. sent or received SIP message (DEBUG level)
4. SIP message summary (INFO level)
5. inbound and outbound calls (INFO level)
6. registration status change (INFO level)
7. negotiated codec (INFO level)
8. Ethernet link up (INFO level)
9. SLIC chip exception (WARNING and ERROR levels)
10. memory exception (ERROR level)
The Syslog uses USER facility. In addition to standard Syslog payload, it
contains the following components:
GS_LOG: [device MAC address][error code] error message
Example: May 19 02:40:38 192.168.1.14 GS_LOG: [00:0b:82:00:a1:be][000]
Ethernet link is up