Grandstream ht-503 User Manual

 

Grandstream Networks, Inc. 

Page 18 of 37  

HT503 ATA has an embedded Web server that will respond to HTTP GET/POST requests. It also has 
embedded HTML pages that allow users to configure the HT503 through a Web browser such as 
Microsoft’s IE, AOL’s Netscape or Mozilla Firefox installed on Windows or Unix OS. (Macintosh OS is not 
included). 

The HT503 HTML configuration page can be accessed via LAN or WAN ports. 

• 

1.  Directly connect a computer to the LAN port  

2.  Open a command window on the computer 

3.  Type in “ipconfig /release”, the IP address etc becomes 0 

4.  Type in “ipconfig /renew”, the computer gets an IP  address in 192.168.2.x segment by 

default 

5.  Open a web browser, type in the default IP address of the LAN port. 

. You 

will see the log in page of the device.  

 

• 

1.  Follow table 4 to find the WAN side IP address. 

2.  Open a web browser, type in the WAN side IP address – for example: 

http://HT503-WAN-IP-Address 

• 

WAN side HTTP access is disabled by default for security reason. You can enable HTTP access 
on the configuration page by setting “WAN side HTTP access” to be YES.  

• 

Initial access to the configuration pages is always from the LAN port. The instructions are listed 
above. 

• 

The IVR announces 12 digits IP address, you need to strip out the leading “0” in the IP address. 
For ex. IP address: 192.168.001.014, you need to type in http://192.168.1.14 in the web browser.  

 

Once the HTTP request is entered and sent from a web browser, the user will see a log-in screen.  There 
are two default passwords for the login page:  
 

End User Level 

123 

Only Status and Basic Settings 

Administrator Level 

admin 

Browse all pages  

 
 
Only an administrator can access the “ADVANCED SETTING” configuration page. Please reference the 
GUI pages using the following link:  

 

  
Once this HTTP request is entered and sent from a Web browser, the HT503 will respond with the 
following login screen: