VoIP Gateway Grandstream HT503

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Description Specifications Additional materials

The HT503 is a VoIP Gateway featuring 1 analog telephone FXS port and 1 PSTN line FXO port in order to offer backup lifeline support using a PSTN line.

General All

Interfaces

1-Port FXS (RJ11);
1-Port FXO (RJ11);
1-Port 10/100MbE (RJ45) WAN;
1-Port 10/100MbE (RJ45) LAN

Physical Parameters

Dimensions (HxWxD) (mm)

25 x 115 x 75

(0.98 x 4.52 x 2.95 in)

Maximum Weight (kg)

0.3 (0.6 lbs)

Environmental Conditions

Relative Humidity (%)

10 to 90

Operating Temperature (°C)

0 to 40 (32 to 104°F)

Maximum Power Consumption (W)

3.82

Supported protocols

TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, TFTP, TELNET, SIP (RFC 3261)

Supported codecs

G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, G.726, iLBC.

Management

Telnet; Web; Syslog

Power Supply Unit (PSU)

AC PSU

Type:	External
Rated voltage range:	100 to 240 VAC, 50-60Hz
Output:	12 VDC, 0.5 A

DC PSU

Not supported

HT503 Datasheet (en)