Grandstream Networks HT818 Administration Manual page 32

Please refer to the document below to determine your local call progress tones:
http://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdf
Prompt Tone Specifies the key pattern to get Prompt Tone. Maximum 20 digits
Access Code
Lock Keypad Locks configuration update via keypad. Default is No.
Update
Disable Voice Removes ability to use integrated voice prompt menu configuration. Default is No.
Prompt
Disable Direct IP Deactivates Direct IP-to-IP calling function. Default is No.
Call
NTP Server Defines URL or IP address of the NTP (Network Time Protocol). Used by the HT818 to
synchronize the date and time. Public NTP servers can be found at
Default is pool.ntp.org
Allow DHCP Option Obtains NTP server address from a DHCP server using DHCP Option 42; it will
42 to NTP Server override configured NTP Server. If set to "No", the HT818 will use configured NTP
server to synchronize time and date even if a NTP server is provided by DHCP server.
Default is Yes.
Syslog Server Sets IP address or URL of system log server. The server collects system log
information from the HT818.
Syslog Level
Selects log level; the level is one of DEBUG, INFO, WARNING, and ERROR.
Syslog messages are sent based on the following events. Default is NONE.
•
"Prompt Tone"
•
"Conference Party Hangup Tone"
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)
HT818 Administration Guide
Version 1.0.9.3
http://www.ntp.org .
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