Grandstream Networks BT200 user manual Use Random Port Keep-alive interval Use NAT IP STUN Server

Use Random Port

Keep-alive interval

Use NAT IP

STUN Server

Firmware Upgrade and provisioning

Via TFTP Server

Via HTTP Server

Allow DHCP Option 66 to override server

Automatic Upgrade

Authenticate Conf File

Off-hook Auto Dial

This parameter, when set to Yes, will force random generation of both the local SIP and RTP ports. This is usually necessary when multiple BT200 s are behind the same NAT.

This parameter specifies how often the BT200 sends a blank UDP packet to the SIP server in order to keep the “hole” on the NAT open. Default is 20 seconds.

NAT IP address used in SIP/SDP message. Default is blank.

IP address or Domain name of the STUN server.

This radio button will enable BT200 to download firmware or configuration file through either TFTP or HTTP.

This is the IP address of the configured TFTP server. If selected and it is non-zero or not blank, the BT200 will retrieve new configuration file or new code image from the specified TFTP server at boot time. If after 3 attempts boot-up fails, the server will timeout and then start the boot process using the existing code image in the Flash memory. If a TFTP server is configured and a new code image is retrieved, the new downloaded image will be verified and then saved into the Flash memory.

NOTE: Please do NOT interrupt the TFTP upgrade process (especially the power supply) as this will damage the device. Depending on the network environment this process can take up to 15 or 20 minutes.

The URL for the HTTP server used for firmware upgrade and configuration via HTTP. i.e. http://provisioning.mycompany.com:6688/Grandstream/1.0.5.16 Here “:6688” is the specific TCP port that the HTTP server is listening at, it can be omitted if using default port 80.

NOTE: If Auto Upgrade is set to No, BT200 will only do HTTP download once at boot up.

DHCP Option 66 is used to identify a TFTP server when the 'sname' field in the DHCP header has been used for DHCP options. If you choose yes, BT200 will use the TFTP server resolved from DHCP, instead of the one you specified in the "TFTP Server" option above.

Choose Yes to enable automatic upgrade and provisioning.

In “Check for new firmware every” field, enter the number of days to enable BT200 to check the server for firmware upgrade or configuration in the defined period of days. When set to No, BT200 will only upgrade once at boot up.

You also have the following options:

•“Always check for New Firmware”

•“Check New Firmware only when F/W pre/suffix changes”

•“Always skip firmware check.”

If set to Yes, cfg file will be authenticated before acceptance. Useful to protect against unauthorized changes to the device configuration.

This parameter allows the user to configure a User ID or extension number to be automatically dialed upon off-hook. Please NOTE that only the user part of a SIP address needs to be entered here. The phone will automatically append the “@” and the host portion of the corresponding SIP address.

Grandstream Networks, Inc.	BT200 User Manual	Page 24 of 37
	Firmware 1.1.1.14	Last Updated: 12/2006