Grandstream Networks HT813 Administration Manual page 45

Use P-
Emergency- This feature support of IEEE-48-addr and IEEE-EUI-64 in SIP header for emergency calls.
Info Header
Specifies which address (LAN or WAN address) the device will detect to use it in SIP Register Contact
SIP REGISTER
Header. When set to LAN, Contact header will include local IP from ATA in REGISTER messages, while if set
Contact
to WAN, host/port/contact will be updated from SIP 401/403/404/407 Via header "received"/"rport"
Header Uses
parameters in REGISTER messages. Default is LAN Address.
Allow SIP
This feature allows user to reset the devices directly through SIP Notify. Default is No.
Factory Reset
Defines T1 timeout value.
It is an estimate of the round-trip time between the client and server transactions.
SIP T1
For example, the HT813 will attempt to send a request to a SIP server.
Timeout
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 Identifies maximum retransmission interval for non-INVITE requests and INVITE responses. Retransmitting
Interval 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
Defines payload type for DTMF using RFC2833.
Payload Type
Preferred
Sorts DTMF methods (in-audio, via RTP (RFC2833) or via SIP INFO) by priority.
DTMF
method (in
order)
You can configure up to 3 Priorities.
Allows users to configure the Inband DTMF Duration and Inter-Duration.
Inband DTMF
The inband DTMF Duration range varies from 40-2000ms with 100ms as A Default value.
Duration
The inband DTMF inter-Duration varies from 40-2000ms with 50ms as A Default value.
DSP DTMF
Allows users to configure the DSP DTMF Detector Duration and Inter-Duration Threshold.
Detector
The DSP DTMF Detector duration threshold varies from 20-200ms with 30ms as a Default Value.
Duration
The DSP DTMF Detector inter-duration threshold varies from 20-200ms with 30ms as a Default Value.
Threshold
Uses above DTMF order without negotiation.
Disable DTMF
Negotiation
Default is No.
Generate
When enabled the RFC2833 events are generated until key is released.
Continuous
RFC2833
Default is No.
Events