Grandstream Networks BT200 사용자 설명서

 

Grandstream Networks, Inc. 

Page 30 of 35  

Last Updated:  12/2006

 

 

To upgrade firmware, the BT–200 can be configured with a TFTP server where the new code image is 
located. It is recommended to set the TFTP server address in either a public IP address or on the same 
LAN with the BT–200.  There are two ways to use the TFTP server to upgrade the BT–200 firmware 
 

1.  the keypad configuration menu  
2.  the BT–200’s Web configuration interface.  

To configure the TFTP server via menu prompt, please refer to 

.  After the TFTP IP address is set up, re-boot or power cycle the BT–200 to run the new 

firmware.   
 
Web Configuration Interface 
To configure the TFTP server via the Web configuration interface, open up your browser to point at the IP 
address of the BT–200.   
 

1. Input 

 to enter the configuration screen.  

2.  Enter the TFTP server address in the designated field located at the bottom of the configuration 

screen. 

3.  Update the change by clicking the “Update” button.  
4.  Reboot or power cycle the phone, the firmware files will be fetched upon booting up.  

  
The system will check the TFTP server only during the initial power up.  If the configured TFTP server is 
found and a new code image is available, the BT–200 will retrieve the new image files by downloading 
them into the BT–200’s SRAM. During this stage, the BT–200’s LEDs will blink until the 
checking/downloading process is completed.  Upon verification of checksum, the new code image will 
then be saved into the Flash. If TFTP fails for any reason (e.g., TFTP server is not responding, there are 
no code image files available for upgrade, or checksum test fails, etc), the BT–200 will stop the TFTP 
process and boot using the existing code image in the flash.  
 
The TFTP process may take up to 2 minutes over the Internet, or 20+ seconds if it is performed on a 
LAN.  Grandstream recommends conducting firmware upgrades in a controlled LAN environment if 
possible.