Grandstream Networks HT503 User Manual page 67

DNS SRV use
Registered IP
Tel URI
SIP Registration
Unregister on Reboot
Outgoing Call Without
Registration
Register Expiration
SIP registration
failure retry wait time
Layer 3 QoS
Local SIP Port
Local RTP Port
Use Random Port
Refer to Use Target
Choose whether to enable DNS SRV to use Registered IP when DNS mode
is set to SRV or NAPTR/SRV. If set to Yes, the device will send the request
to IP which is used for SIP REGISTER request. If set to No and DNS Mode
is SRV or NAPTR/SRV, the device is going to send request to the IP based
on SRV priority order. Default is No.
The default setting is "Disabled". If the phone has an assigned PSTN
Number, this field should be set to "User=Phone" then a "User=Phone"
parameter will be attached to the "From header" in the SIP request to
indicate the E.164 number. If server supports TEL URI format, then this
option needs to be selected.
Controls whether the HT503 needs to send REGISTER messages to the
proxy server. The default setting is Yes.
Default is No. If set to Yes, the SIP user's registration information will be
cleared on reboot.
Default is No. If set to "Yes," user can place outgoing calls even when not
registered (if allowed by ITSP) but is unable to receive incoming calls.
This parameter allows the user to specify the time frequency (in minutes)
the HT503 refreshes its registration with the specified registrar. The default
interval is 60 minutes (or 1 hour). The maximum interval is 65535 minutes
(about 45 days).
This parameters allows the user to specify the time frame (in seconds) the
HT503 will wait before sending another SIP registration INVITE in case the
first INVITE fails.
Configure SIP DSCP value in decimal (0-63). Default is 26 for SIP DSCP
Configure RTP DSCP value in decimal (0-63). Default is 46 for RTP DSCP.
Defines the local SIP port the HT503 will listen and transmit. The default
value for FXS port is 5062.
This parameter defines the local RTP port pair used by the HandyTone ATA.
The default value for FXO port is 5012.
This parameter forces the random generation of both the local SIP and RTP
ports when set to Yes. This is usually necessary when multiple HT503
units are behind the same NAT.
Default is No. If set to YES, then for Attended Transfer, the "Refer-To"
HT503 User Manual
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