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Grandstream Networks HT812 Administration Guide

Grandstream Networks HT812
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P a g e | 44
HT812/HT814 Administration Guide
Version 1.0.9.3
From Header: When set to “From Header”, the ATA will use the FROM
header to display the caller ID.
SIP T1 Timeout
Defines T1 timeout value. It is an estimate of the round-trip time between the
client and server transactions. For example, the HT812/HT814 will attempt to
send a request to a SIP server. The time it takes between sending out the
request to the point of getting a response is the SIP T1 timer. If no response
is received the timeout is increased to (2*T1) and then (4*T1). Request re-
transmit retries would continue until a maximum amount of time defined by
T2. Default is 0.5 seconds.
SIP T2 Interval
Identifies maximum retransmission interval for non-INVITE requests and
INVITE responses. Retransmitting and doubling of T1 continues until it
reaches T2 value.
Default is 4 seconds.
SIP Timer D
Configure the SIP Timer D defined in RFC3261. 0 - 64 seconds. Default is 0.
DTMF Payload Type
Defines payload type for DTMF using RFC2833.
Preferred DTMF method (in
order)
Sorts DTMF methods (in-audio, via RTP (RFC2833) or via SIP INFO) by
priority.
Disable DTMF Negotiation
Uses above DTMF order without negotiation.
Default is No.
Generate Continuous
RFC2833 Events
When enabled the RFC2833 events are generated until key is released.
Default is No.
Send Hook Flash Event
Default is No. If set to yes, flash will be sent as DTMF event.
Flash Digit Control
Overrides the default settings for call control when both channels are in use
Enable Call Features
Enables do not disturb, call forward and other call features via the local
feature codes on the base. Otherwise, ITSP feature codes can be used.
Default is Yes.
Off Hook Auto Dial
Configures a user ID or extension number that is automatically dialed when
off-hook. Only the user part of a SIP address needs to be entered. The
HT812/HT814 will automatically append the “@” and the host portion of the
corresponding SIP address.
Off Hook Auto Dial Delay
Specifies the auto-dial delay after off hook.

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Grandstream Networks HT812 Specifications

General IconGeneral
BrandGrandstream Networks
ModelHT812
CategoryTelephone Accessories
LanguageEnglish

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