Grandstream Networks HT503 Installing And Configuring

Grandstream HT503
Installing and Conguring the
Grandstream HT503 ATA Device
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The Grandstream HT503 ATA is a single port FXO and single port FXS device packaged together in a compact chassis.
This device may be ulized for many purposes:
• Analog Backup line for incoming and outgoing calls on FXO port
• Local or Remote Fax on FXS port
• Local or remote phone on FXS port
The FXO and FXS ports operate independently of each other. For example, the HT503 can provide phone or fax service
on the FXS port while simultaneously providing an analog back up connecon on the FXO port.
Overview of the Installaon Process:
The HT503 is normally pre-congured for use with our StarSystem Hybrid telephone system. In most cases, the install-
er can connect the HT503 to the customer’s network along with the appropriate analog telephone connecons.
If the provided conguraon needs to be changed, it is possible to eld-program the HT503 using the instrucons
detailed later in this document.
Connecng the HT503:
The rear panel of the HT503 has a power connecon, two RJ11 telephone connectors, and two RJ45 network connec-
tors, as shown in this picture:

Grandstream Networks HT503 Specifications

General

Brand	Grandstream Networks
Model	HT503
Category	Telephone Accessories
Language	English