| Use Random |
| This parameter, when set to “Yes”, will force random generation of both the local SIP |
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| Port |
| and RTP ports. This is usually necessary when multiple BT200s are behind the same |
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| NAT. Default is No. |
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| This parameter specifies how often the BT200 sends a blank UDP packet to the SIP |
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| interval |
| server in order to keep the “hole” on the NAT open. Default is 20 seconds. |
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| Use NAT IP |
| NAT IP address used in SIP/SDP message. Default is blank. |
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| STUN Server |
| IP address or Domain name of the STUN server. STUN resolution result will display in |
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| the STATUS page of the Web UI. |
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| Firmware |
| Default method is HTTP. Firmware upgrade may take up to 10 minutes depending on |
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| Upgrade and |
| network environment. Do not interrupt the firmware upgrading process. |
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| Provisioning |
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| Via TFTP Server |
| This is the IP address of the configured TFTP server. If selected and it is |
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| blank, the BT200 will attempt to retrieve a new configuration file or new code image from |
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| the specified TFTP server at boot time. It will make up to 3 attempts before timeout and |
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| then it will start the boot process using the existing code image in the Flash memory. If a |
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| TFTP server is configured and a new code image is retrieved, the new downloaded |
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| image will be verified and then saved into the Flash memory. |
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| Note: Grandstream strongly recommends that the user upgrade firmware locally in a |
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| LAN environment if using TFTP to upgrade. Please do NOT interrupt the TFTP upgrade |
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| process (especially the power supply) as this will damage the device. |
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| Via HTTP |
| The HTTP server URL used for firmware upgrade and configuration via HTTP. For |
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| Server |
| example: http://provisioning.mycompany.com:6688/Grandstream/1.1.5.15. |
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| Here “:6688” is the specific TCP port that the HTTP server is using; omit if using default |
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| port 80. |
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| Note: If Auto Upgrade is set to No, BT200 will only perform HTTP download once at |
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| boot up. |
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| Config Server |
| IP address or domain name of firmware server. |
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| Path |
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| Firmware File |
| Default is blank. If configured, BT200 will request the firmware file with the prefix/postfix. |
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| Prefix/Postfix |
| This setting is useful for ITSPs. End user should keep it blank. |
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| Config File |
| Default is blank. End user should keep it blank. |
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| Prefix/Postfix |
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| Allow DHCP |
| Default is Yes. This allows device gets provisioned automatically. |
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| Option 66 to |
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| override server |
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| Authenticate |
| Default is “No”. If set to “Yes”, configuration file would be authenticated before |
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| Conf File |
| acceptance. End user should use default setting. |
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Grandstream Networks, Inc. | BT200 User Manual | Page 25 of 33 |
| Firmware 1.1.5.15 | Last Updated: 01/2008 |
