Grandstream Networks HT818 Administration Manual page 35

SLIC Setting Depends on standard phone type (and location).
Caller ID
Selects the caller id scheme, for example: Bellcore/Telcordia, ETSI-FSK ...
Scheme
DTMF Caller
Defines the start and stop tones (Default, A, B, C, D or #) to delimit CID.
ID
Disable analog phone's caller ID when receiving a call with "Anonymous", "unavailable" or "unknown" in FROM
Disable
header and without "Display info".
Unknown
Note: This relies also on analog phone's design, some phones will still display "unknown" with this feature enabled.
Caller ID
Default is No.
Replace
Beginning '+' When this feature is set to Yes, device will replace the "+" sign at the beginning of a number in the FROM header.
with 00 in Default is No.
Caller ID
Reverses the polarity upon call establishment and termination.
Polarity
Reversal
Default is No.
Loop Current Allows the traditional PBX used with HT81x to apply this method for signaling call termination. Method initiates
Disconnect short voltage drop on the line when remote (VoIP) side disconnects an active call. Default is No.
Play
busy/reorder
Allow user to configure if it will play busy/reorder tone before loop current disconnect upon call fail.
tone before
Default is No.
Loop Current
Disconnect
Loop Current
Configures the duration of voltage drop described in topic above. HT81x support a duration range from 100 to
Disconnect
10000ms. Default value is 200.
Duration
Enable Pulse
Allow users to enable Pulse Dialing option under FXS Port. Default is No.
Dialing
Allows users to use Swedish pulse dialing standard or New Zealand pulse dialing standard.
Pulse Dialing
Standard
Default is General Standard.
Enable Hook
Enables the FLASH button to be used for terminating calls. Default is Yes.
Flash
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.
On Hook Specifies the on-hook time for an on-hook event to be validated. HT81x support a range from 40 to 2000 ms. Default
Timing value is 400.
Gain 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.
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