Grandstream ht-503 User Manual

 

Grandstream Networks, Inc. 

Page 19 of 37  

 

  
 
The password is case sensitive with maximum length of 25 characters. The factory default password for 
End User and administrator is “123” and “admin” respectively. Only an administrator can access the 
“ADVANCED SETTING” configuration page.   
 

NOTE:  If you can not log into the configuration page by using the default password, please check with 
the VoIP service provider.  It is most likely the VoIP service provider has provisioned the device and 
configured for you therefore the password has already been changed. 
 
After a correct password is entered in the login screen, the embedded web server will respond with the 
Configuration pages which are explained in details below. 

 

The device ID, in HEX format.  This is very important ID for ISP troubleshooting. Both 
LAN and WAN MAC addresses are located here. The LAN MAC address is used for 
provisioning and is written on the label in the original box as well as on the label located 
on the back panel of the device. 

This field shows IP address of the HT503.  

This field contains the product model info, such as HT503. 

Program: This is the main software release. This number is always used for firmware 
upgrade.  Current release is 1.0.0.9 
Bootloader: current version is 1.0.0.7. 
Core:   current version 1.0.0.18 
Base:   current version is 1.0.0.43 

This shows system up time since last reboot. 

This shows whether the PPPoE is up if connected to DSL modem 

This shows what kind NAT the HT503 is connected to.  It is based on STUN protocol. If 
the detected NAT is symmetric NAT, STUN will not work and Outbound Proxy needed 
to make HT503 functioning correctly. 

Displays information regarding the individual FXS ports. 

Yes 

613 

 

 

No 

 

614 

 

 

•  Both FXS port and FXO port are registered with this SIP Server. 
•  FXS Port user has set Do Not Disturb. 
•  FXS Port user has set his calls to be forwarded unconditionally to ext 613. 

FXO Port user has set his calls to forward to 614 when his phone is busy.