Grandstream ht-503 Manuel D’Utilisation

 

Grandstream Networks, Inc. 

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service providers in different countries.  14 are selectable in this version of the F/W. 

Default is 4. This setting specifies number of phone rings (on the phone connected to 
the FXS port) before a PSTN incoming call is bridged to VoIP 
Note: The number of rings feature serves as a PSTN answer delay, and should be set 
to a larger value to allow enough time for the HT503 to decode the Caller ID signal set 
by the central office. 

If Yes, the phone connected to the FXS port will ring a configured amount of times (see 
above).  If not, the phone connected to the FXS port will not ring. 

If the PSTN Ring Thru Delay is set to Yes, all incoming PSTN calls through FXO will 
ring the phone connected to the FXS port, after this delay or after caller id is detected 
(whichever comes first). 

Digit length and Dial Pause are port digit dialing configurations; FXO needs to dial out 
digits for VOIP to PSTN 1 stage calls, and unconditional call forward to PSTN, and 
route to PSTN.  Digit Length is the play time for each digit.  
Note: In order to receive the caller ID information, the delay should be set to a value 
larger than the delay required to complete the PSTN caller ID delivery. 

Dial pause is the time between 2 digits for the same scenario as explained above. 

Used for PSTN to VoIP calls. PSTN users need to enter the FIRST digit within the first 
digit timeout period.  Otherwise the call will be dropped. 

When dialing from the PSTN to VoIP, subsequent digits have to be input within the 
period of inter-digit timeout. Otherwise the dial plan thinks it is the end of the digit input. 

Wait for Dial tone is used for one stage VoIP to PSTN calls.  If set to Yes, the device 
will first obtain a PSTN line and a dial tone from a central office.  After obtaining the dial 
tone, the digits dialed will be sent to the central office. 

This configuration is applicable for VoIP to PSTN calls and indicates one or two stage 
dialing methods. 

 

Note: General settings have the same meaning as explained in the FXS page definitions. Here they are 
described only as parameters related to the FXO port. 
 

Once a change is made, users should click on the “Update” button in the Configuration page. The HT503 
will display a confirmation screen to confirm that the changes have been saved.   Click ‘Reboot’ to save 
all changes.  Please reference the GUI pages using the following link:  

 

The administrator can remotely reboot the HT503 by clicking on the “Reboot” button at the bottom of the 
configuration page.  Once done, the following screen will be displayed to indicate that rebooting is 
underway.  You can login again after about 30 seconds.