Grandstream Networks HT813 Administration Manual page 30

SIP
Registratio
Sends re-register request after specific time (in seconds) when registration process fails with error 403
n Failure
Forbidden. Maximum interval is 3600 seconds (1 hour).
Retry Wait
Time upon
Default is 1200 seconds.
403
Forbidden
Enable SIP
Enables SIP OPTIONS to track account registration status so the phone adapter will send periodic OPTIONS
OPTIONS
message to server to track the connection status with the server. Default setting is No.
Keep Alive
SIP
Configures the time interval when the phone adapter sends OPTIONS message to SIP server. The default
OPTIONS
setting is 30 seconds, which means the phone adapter will send an OPTIONS message to the server every 30
Keep Alive
seconds. The default range is 1-64800.
Interval
SIP
OPTIONS Defines the Number of max lost packets for SIP OPTIONS Keep Alive before re-registration. Between 3-10,
Keep Alive default is 3.
Max Lost
Defines Diff-Serv values for SIP and RTP. Defaults are:
Layer 3
SIP DSCP: 26
QoS
RTP DSCP: 46
Local SIP Defines local port to use by the HT813 for listening and transmitting SIP packets. Default value for FXS is
Port 5060.
Local RTP Defines the local RTP-RTCP port pair the HT813 will listen and transmit. It is the HT813 RTP port for channel
Port 0. The default value for FXS port is 5004.
Use
Controls whether to use configured or random SIP ports. This is usually necessary when multiple HT813 are
Random
behind the same NAT. Default is No.
SIP Port
Use
Controls whether to use configured or random RTP ports. This is usually necessary when multiple HT813 are
Random
behind the same NAT. Default is No.
RTP Port
Enable
Allows users to enable RTCP. Default setting is Yes.
RTCP
Hold
Target Allows user to hold the phone call before referring it. If set to No, the call will not be hold before referred.
Before Default is Yes.
Refer
Refer-To
Includes target's "Contact" header information in "Refer-To" header when using attended transfer. Default is
Use Target
No.
Contact
Transfer on
If set to "Yes", when the phone hangs up as the conference initiator, the conference call will be transferred to
Conference
the other parties so that other parties will remain in the conference call. Default setting is No.
Hang-up