GRANDSTREAM HT812 Analog FXS IP Gateway 2 Port + NAT Router User Guide

Play  

busy/reorder  

tone before Loop  

Current  

Allow user to configure if it will play busy/reorder tone before loop current disconnect upon call fail.  

Default is No.  

Disconnect  

Loop Current  

Disconnect  

Duration  

Configures the duration of voltage drop described in topic above. HT81x support a duration range from 100 to  

10000ms. Default value is 200.  

Enable Pulse  

Dialing  

Allow users to enable Pulse Dialing option under FXS Port. Default is No.  

Allows users to use Swedish pulse dialing standard or New Zealand pulse dialing standard.  

Default is General Standard.  

Pulse Dialing  

Standard  

Enable Hook  

Flash  

Enables the FLASH button to be used for terminating calls. Default is Yes.  

Defines the time period when the cradle is pressed (Hook Flash) to simulate FLASH. To prevent unwanted activation  

of the Flash/Hold and automatic phone ring-back, adjust this time value.  

Hook Flash  

Timing  

HT81x support a range from 40 to 2000 ms.  

Default values are 300 minimum and 1100 maximum.  

Specifies the on-hook time for an on-hook event to be validated. HT81x support a range from 40 to 2000 ms. Default  

value is 400.  

On Hook Timing  

Adjusts the voice path volume.  

• Rx is a gain level for signals transmitted by FXS  

• Tx is a gain level for signals received by FXS.  

Default = 0dB for both parameters. Loudest volume: +6dB Lowest volume: -6dB.  

User can adjust volume of call using the Rx gain level parameter and the Tx gain level parameter located on the FXS  

port configuration page.  

Gain  

If call volume is too low when using the FXS port (ie. the ATA is at user site), adjust volume using the Rx gain level  

parameter under the FXS port configuration page.  

If voice volume is too low at the other end, user may increase the far end volume using the Tx gain level parameter  

under the FXS port configuration PAGE.  

Disables the LEC per call base. Recommended for Fax/Data calls.  

Default is No.  

Disable Line  

Echo Canceller  

Disables the NEC per call base. Recommended for Fax/Data calls.  

Default is No.  

Disable Network  

Echo Suppressor  

Outgoing Call  

Duration Limit  

Defines the call duration limit for the outgoing calls. Default is 0 (No limit).  

allows users to configure the Incoming Call Duration Limit.  

Valid Range is 0 - 180 ( 0 is no limit )  

Default value is 0.  

Incoming Call  

Duration Limit  

Customizes ring frequency.  

Ring Frequency  

Valid options: 20Hz – 25Hz. Default is 20Hz.  

Enable High  

Ring Power  

Configures a high ringing voltage output for the ATA.  

This feature is used to adjust DC feed current.  

OnHOOK DC  

Feed Current  

This feature allows users to customize the count of RFC2833 events.  

The Valid Value Range is between 2 and 10 , if it is set to 0 , it means continuous RFC2833 events are activated  

Default is 8.  

RFC2833 Events  

Count  

RFC2833 End  

Events Count  

This feature allows users to customize the count of RFC2833 end events. Default is 3.  

Customizes the Ring Tone 1 to 3 with associate caller ID: when selected, if caller ID is 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 the symbol “x+” will be used.  

For example: if configured as 617x+, 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.  

Distinctive Ring  

Tone  

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: <127.0.0.1>; info=ring5  

Configures the ring tone cadence preferences. User has 10 choices.  

The configuration, completed in Distinctive Ring Tones block in the same page, applies to ring tones cadences  

configured here.  

Ring tones  

Distinctive Call  

Waiting Tone  

Customizes the Call Waiting Tone 1 to 10 with associate caller ID: when selected, if caller ID is configured, then the  

device will ONLY use this call waiting tone when the incoming call waiting is from the Caller ID. When selected but  

no Caller ID is configured, the selected call waiting tone will be used for all incoming waiting calls using the FXS  

port. Distinctive Call Waiting Tones can be configured not only for matching a whole number, but also for matching  

prefixes. In this case symbol “x+” will be used.  

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General	Details
Name	GRANDSTREAM HT812 Analog FXS IP Gateway 2 Port + NAT Router User Guide
Make	GRANDSTREAM
Language	English
Filetype	PDF (Download)
File size	MB

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