GrandStream HT503 1-FXS/1-FXO Port Analog Telephone
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<b>[Product Information]</b><br>
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<li>1 FXS analog telephone ports (RJ11), 1 PSTN line FXO port, dual 10/100 Mbps ports with integrated NAT router</li>
<li>Advanced telephony features include caller ID, call waiting</li>
<li>3-way voice conference, transfer, forward, do not disturb, message indicator, multi-language voice prompts, T.38 fax, flexible dial plan and more</li>
<li>Supports up to 2 SIP accounts</li>
<li>Status LED for power, telephone and network ports, and message waiting indication</li>
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