Grandstream Networks HT813

P a g e | 41
HT813 Administration Guide
Version 1.0.1.2
Enable SIP
OPTIONS Keep
Alive
Enables SIP OPTIONS to track account registration status so the phone adapter will
send periodic OPTIONS message to server to track the connection status with the
server. Default setting is No.
SIP OPTIONS Keep
Alive Interval
Configures the time interval when the phone adapter sends OPTIONS message to SIP
server. The default setting is 30 seconds, which means the phone adapter will send an
OPTIONS message to the server every 30 seconds. The default range is 1-64800.
SIP OPTIONS Keep
Alive Max Lost
Defines the Number of max lost packets for SIP OPTIONS Keep Alive before re-
registration. Between 3-10, default is 3.
Layer 3 QoS
Defines Diff-Serv values for SIP and RTP. Defaults are:
SIP DSCP: 26
RTP DSCP: 46
Local SIP Port
Defines local port to use by the HT813 for listening and transmitting SIP packets. Default
value for FXS is 5060.
Local RTP Port
Defines the local RTP-RTCP port pair the HT813 will listen and transmit. It is the HT813
RTP port for channel 0. The default value for FXS port is 5004.
Use Random SIP
Port
Controls whether to use configured or random SIP ports. This is usually necessary when
multiple HT813 are behind the same NAT. Default is No.
Use Random
RTP Port
Controls whether to use configured or random RTP ports. This is usually necessary
when multiple HT813 are behind the same NAT. Default is No.
Enable RTCP
Allows users to enable RTCP. Default setting is Yes.
Hold Target
Before Refer
Allows user to hold the phone call before referring it. If set to No, the call will not be hold
before referred. Default is Yes.
Refer-To Use
Target Contact
Includes target’s “Contact” header information in “Refer-To” header when using
attended transfer. Default is No.
Transfer on
Conference
Hang-up
If set to "Yes", when the phone hangs up as the conference initiator, the conference call
will be transferred to the other parties so that other parties will remain in the conference
call. Default setting is No.
Disable Bellcore
Style 3-Way
Conference
Gives the users the possibility of making conference calls by pressing “Flash” key, when
it’s enabled by dialing *23 +second callee number. Default is No
Remove OBP from
Route Header
Removes outbound proxy info in “Route” header when sending SIP packets.
Default is No.
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