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GRANDSTREAM HT503 is a hybrid Analog Telephone Adapter

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GRANDSTREAM HT503 is a hybrid Analog Telephone Adapter

The HT503 is a hybrid Analog Telephone Adapter (ATA) and VoIP Router. It features both an FXS (analog telephone) port and an FXO (PSTN) port so you can have backup lifeline support using a PSTN line in the case of a power outage. It also integrates 2 10/100 RJ45 ports with an integrated high performance NAT router.

Availability: In stock

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