Grandstream Networks HT503 User Manual

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HT503 User Manual
DNS SRV use
Registered IP
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.
Tel URI
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.
SIP Registration
Controls whether the HT503 needs to send REGISTER messages to the
proxy server. The default setting is Yes.
Unregister on Reboot
Default is No. If set to Yes, the SIP user’s registration information will be
cleared on reboot.
Outgoing Call Without
Registration
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.
Register Expiration
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).
SIP registration
failure retry wait time
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.
Layer 3 QoS
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.
Local SIP Port
Defines the local SIP port the HT503 will listen and transmit. The default
value for FXS port is 5062.
Local RTP Port
This parameter defines the local RTP port pair used by the HandyTone ATA.
The default value for FXO port is 5012.
Use Random Port
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.
Refer to Use Target
Default is No. If set to YES, then for Attended Transfer, the “Refer-To”

Grandstream Networks HT503 Specifications

General

Brand	Grandstream Networks
Model	HT503
Category	Telephone Accessories
Language	English