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End User Password
This contains the password for end user to access the Web Configuration Menu. User
can put new password here. This field is case sensitive with maximum of 25 characters
Web Port
This is the device’s internal HTTP server port. Default is 80.
Telnet Server
Default is set to YES
IP Address
• If DHCP mode is enabled, then all the field values for the Static IP mode are not
used (even though they are still saved in the Flash memory.) The HT503 will acquire
its IP address from DHCP in the network.
• PPPoE settings are usually for DSL/ADSL modem users. The HT503 will attempt to
establish a PPPoE session if PPPoE account is set.
• If Static IP mode is selected, the IP address, Subnet Mask, Default Router IP
address, DNS Server 1 (mandatory), DNS Server 2 (optional) fields need to be
configured.
DHCP hostname
This option specifies the name of the client. This field is optional but may be required
by some Internet Service Providers. Default is blank.
DHCP domain
This option specifies the domain name that client should use when resolving
hostnames via the Domain Name System. Default is blank.
DHCP vendor class ID
This option is used by clients and servers to exchange vendor-specific information.
Default is blank.
PPPoE account ID
PPPoE username. Necessary if your ISP requires you to use a PPPoE (Point to Point
Protocol over Ethernet) connection
PPPoE password
PPPoE account password
PPPoE Service name
This field is optional. If your ISP uses a service name for the PPPoE connection, enter
the service name here. Default is blank.
Preferred DNS
The address of your preferred DNS server.
Time Zone
This parameter controls how the displayed date/time will be adjusted according to the
specified time zone.
Self Defined Time Zone The syntax is: std offset dst [offset], start [/time], end [/time]
Default is set to: MTZ+6MDT+5,M3.2.0,M11.1.0
MTZ+6MDT+5,
This indicates a time zone with 6 hours offset with 1 hour ahead which is U.S central
time. If it is positive (+) if the local time zone is west of the Prime Meridian and
negative (-) if it is east.
Prime Meridian (A.K.A: International or Greenwich Meridian)
M3.2.0,M11.1.0
The 1
st
number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec)
The 2
nd
number indicates the nth iteration of the weekday: (1
st
Sunday, 3
rd
Tuesday…)
The 3
rd
number indicates weekday: 0,1,2,..,6( for Sun, Mon, Tues,..,Sat)
Therefore, this example is the DST which starts from the second Sunday of March to
the 1
st
Sunday of November.
Language
Languages supported with the voice prompt.
Device Mode
This parameter controls whether the device is working in NAT router mode or Bridge
mode. Save the setting and reboot prior to configuring the HT503.
NAT Maximum Ports
The number of ports that can be managed while in NAT router mode.
Range: 0 – 4096, default is 1024. Typically one port per connection.
NAT TCP Timeout
NAT TCP idle timeout in seconds. Connection will be closed after preconfigured,
timeout if not refreshed.
Range: 0 - 3600
NAT UDP Timeout
NAT TCP idle timeout in seconds. Connection will be closed after preconfigured,
timeout if not refreshed.
Grandstream Networks, Inc. HT503 User Manual Page 20 of 35
Firmware 1.0.0.6 Last Updated: 6/2007