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Grandstream Networks HT814 Administration Guide

Grandstream Networks HT814
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P a g e | 34
HT812/HT814 Administration Guide
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 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.
Proxy-Require
Determines a SIP Extension to notify the SIP server that the HT812/HT814 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.

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Grandstream Networks HT814 Specifications

General IconGeneral
BrandGrandstream Networks
ModelHT814
CategoryTelephone Accessories
LanguageEnglish

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