FIGURE 3: UPLINK/DOWNLINK BANDWIDTH LIMITATION
Advanced User configuration includes not only the end user configuration, but also advanced configurations such as: SIP configuration, Codec selection, NAT Traversal Setting and other miscellaneous configuration.
| TABLE 9: ADVANCED SETTINGS |
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| Admin Password |
| Administrator password. Only the administrator can configure the “Advanced Settings” page. |
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| Password field is purposely blanked for security reason after clicking update and saved. The |
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| maximum password length is 25 characters. |
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| Layer 3 QoS |
| This field defines the layer 3 QoS parameter which can be the value used for IP Precedence |
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| or |
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| Layer 2 QoS |
| Layer 2 QoS settings. Default setting is blank. VLAN supported equipment is required when |
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| configuring these settings. |
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| STUN Server |
| IP address or Domain name of the STUN server. |
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| This parameter specifies how often the HT503 sends a blank UDP packet to the SIP server in |
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| order to keep the NAT “pin hole” open. Default is 20 seconds. |
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| Use STUN to detect |
| Use STUN |
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| network activity |
| yield any response for configured number of times, the device will restart the TCP/IP |
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| stack. If the STUN server does not respond when the device boots up, the feature is |
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| disabled. |
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| Firmware Upgrade |
| Enables the HT503 to download firmware or configuration files through either TFTP or HTTP |
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| and Provisioning |
| servers. The default method is HTTP. |
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| Via TFTP |
| This is the IP address of the configured TFTP server. If this is configured, the HT503 |
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| retrieves the new configuration file or new code image from the specified TFTP server at boot |
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| time. After 5 attempts, the system will timeout and will start the boot process using the |
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| existing code image in the Flash memory. If a TFTP server is configured and a new code |
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| image is retrieved, the new downloaded image is saved into the Flash memory. |
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| Note: Firmware upgrades may take up to 10 minutes depending on your network |
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| environment. On a LAN it usually takes about 2 minutes. Please do NOT interrupt the TFTP |
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| upgrade process (especially the power supply) as this will damage the device. Depending on |
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| the network environment this process can take up to 15 or 20 minutes. |
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| Via HTTP |
| The URL for the HTTP server used for firmware upgrade and configuration via HTTP. |
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| For example, http://provisioning.mycompany.com:6688/Grandstream/1.0.0.6 |
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| “:6688” is the specific TCP port where the HTTP server is listening; Omit if using default port |
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| 80. Note: If Auto Upgrade is set to No, F/W will download at boot time. |
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| Grandstream Networks, Inc. | HT503 User Manual | Page 22 of 38 |
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| Firmware 1.0.4.2 | Last Updated: 06/2011 |
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