Grandstream Networks HT818 Administration Manual page 39

Off Hook Auto Dial Specifies the auto-dial delay after off hook.
Delay
Proxy-Require Determines a SIP Extension to notify the SIP server that the HT818 is behind a
NAT/Firewall.
Use NAT IP Defines NAT IP address used in SIP/SDP messages. It should only be used if required
by ITSP.
Use SIP User Agent Configures the SIP User-Agent Header.
Header
Distinctive Ring Customizes the Ring Tone 1 to 3 with associate caller ID: when selected, if caller ID is
Tone configured, then the device will ONLY use this ring tone when the incoming call is from
the Caller ID. System Ring Tone is used for all other calls.
When selected but no Caller ID is configured, the selected ring tone will be used for all
incoming calls using the FXS port. Distinctive ring tones can be configured not only for
matching a whole number, but also for matching prefixes. In this case symbol * (star) will
be used.
For example: if configured as *617, Ring Tone 1 will be used in case of call arrived from
the area code 617. Any other incoming call will ring using cadence defined in parameter
System Ring Cadence located under Advanced Settings Configuration page.
Note: If server supports Alert-Info header and standard ring tone set (Bellcore) or
distinctive ring tone 1-10 is specified, then the ring tone in the Alert-Info header from
server will be used. Bellcore rings and tones are independent from custom ring tones.
The custom ring tones can also be specified by alert-info header, for example Alert-
Info: ;info=ring5
Disable Call Disables receiving a second incoming call when the line is engaged.
Waiting Default is No.
Disable Call Disables displaying caller ID when receiving a second incoming call.
Waiting Caller ID Default is No.
Disable Call Disables playing call waiting tone during active call when receiving a second incoming
Waiting Tone call. The CWCID will still be displayed. Default is No.
Disable Connected Disables displaying the number of the person answering the phone.
Line ID Default is No.
Disable Receiver Enables / disables the warning to alert that the phone has been left off-hook for an
Off hook Tone extended period of time.
Default is No.
HT818 Administration Guide
Version 1.0.9.3
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38