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HandyTone -286 User Manual
Grandstream Networks, Inc.
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 Select the onhook voltage to suit different area or PBX.
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 Allow 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, etc.
Syslog Server The IP address or URL of System log server. This feature is especially useful
for ITSP (Internet Telephone Service Provider)
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