Grandstream Networks HT801 Administration Manual page 29

Caller ID Fetch Order
Allow SIP Factory Reset
Maximum Number of SIP Request
Retries
SIP T1 Timeout
SIP T2 Interval
SIP Timer D
DTMF Payload Type
Preferred DTMF method (in order)
Inband DTMF Duration
DSP DTMF Detector Duration
Threshold
Disable DTMF Negotiation
Generate Continuous RFC2833
Events
Send Hook Flash Event
Flash Digit Control
Selects the Caller ID display order which need to be respected by the HT801/HT802.
The available options are:
Auto: When set to "Auto", the HT801/HT802 will look for the caller ID in the order of
P-Asserted Identity Header, Remote-Party-ID Header and From Header in the
incoming SIP INVITE.
Disabled: When set to "Disabled", all incoming calls are displayed with
"Unavailable".
From Header: When set to "From Header", the HT801/HT802 will use the FROM
header to display the caller ID.
Allows to reset the devices directly through SIP Notify. If "Allow SIP Factory Reset"
is set to "YES" under FXS PORT, then the ATA receives the NOTIFY from the SIP
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.
This feature allows user to configure the number of SIP retries before failover
occurs. ( between 1 and 10, default is 2)
Defines T1 timeout value.
It is an estimate of the round-trip time between the client and server transactions.
For example, the HT801/HT802 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.
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.
Configure the SIP Timer D defined in RFC3261. 0 – 64 seconds.
Default is 0.
Defines payload type for DTMF using RFC2833. Default is 101.
Sorts DTMF methods (in-audio, via RTP (RFC2833) or via SIP INFO) by priority.
Allows to adjust the inband DTMF duration sent from ATA to IPPBX.
Default is 100 ms. Valid range: 40-2000 ms.
Inter-duration: 50 ms. Valid range: 40-2000 ms.
Allows users to config the DSP DTMF Detector Duration Threshold.
The default Duration is 30 ms. Valid range: 20-2000 ms.
The default Inter-duration is 30 ms. Valid range: 20-2000 ms.
Uses above DTMF order without negotiation.
Default is No.
When enabled, the RFC2833 events are generated until key is released. Default
is No.
If set to yes, flash will be sent as DTMF event.
Default is No.
When it set to YES it allows the user to perform some call setting when both