Grandstream Networks HT818 Administration Guide

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HT818 Administration Guide
Version 1.0.27.2
server with Event: reset, the HT should perform a factory reset after the
authentication.
The authentication in this case can be either with:
• The admin password if no SIP account is configured on the HT.
• With the credentials of the SIP account if configured on the ATA.
Maximum Number of SIP
Request Retries
This feature allows user to configure the number of SIP retries before failover
occurs. ( between 1 and 10, default is 4).
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 HT818 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.

Grandstream Networks HT818 Specifications

General

Brand	Grandstream Networks
Model	HT818
Category	Telephone Accessories
Language	English