Grandstream Networks HT-286 User Manual
Page 22
Grandstream Networks, Inc.
HT–286 User Manual
Page 22 of 28
Firmware 1.1.0.31
Last Updated: 1/2009
Caller ID Scheme
Select the Caller ID Scheme to suit the standard of different area.
• Bellcore (North America)
• CID (Canada)
• DTMF (Brazil)
• DTMF (Denmark)
• DTMF (Sweden)
• ETSI-FSK (France, Germany, Norway, Taiwan, UK-CCA)
• ETSI-DTMF (Finland, Sweden)
Onhook Voltage
The onhook voltage can be selected according to the line voltage depending
on the analog phone used. The low power/high power will increase/decrease
the output current. Selecting "low power" will make loop current limit = 20mA,
selecting "high power" make loop current limit = 32mA. The default selection
is 36V (High Power).
Polarity Reversal
Select Polarity Reversal to adapt some call charge/billing system. Default is
No.
NTP server
This parameter defines the URI or IP address of the NTP server which the IP
phone will use to display the current date/time.
Send Anonymous
If this parameter is set to “Yes”, the device is employing the mechanism to
block its ID.
Anonymous Method
If it is set to “Use from header”. Callers’ SIP user ID will be sent as
anonymous, essentially block the Caller ID from displaying. If it is set to “User
privacy header”, the SIP INVITE message contains a “privacy” header, and
the server blocks the caller ID from the called party.
Time to ring
This setting allows user to adjust the ring time of the phone. Default is 60
seconds.
Special Features
Default is Standard. Choose the selection to meet some special requirements
from Soft Switch vendors like Nortel, Broadsoft, CBCOM etc.
CBCOM Encode
SIP, RT(C)P and T.38 modes, 1.0 and 1.1
CBCOM Encoder 1.1
Key:
Key to be used by CBCOM
Syslog Server
The IP address or URL of System log server. This feature is especially useful
for ITSP (Internet Telephone Service Provider)