Grandstream Networks HT-502 user manual Emc

TABLE3: HT–502 TECHNICAL SPECIFICATIONS

			HT–502 Analog Telephone Adaptor
Telephone Interfaces			2 FXS ports, 2 SIP accounts
Network Interface			Two (2) 10M/100 Mbps, RJ-45
LED Indicators			Power, WAN, LAN, PHONE1 and PHONE2
Reset Button			Factory Reset button.
Voice		over Packet	Voice Activity Detection (VAD) with CNG (comfort noise generation) and PLC
Capabilities			(packet loss concealment), Dynamic Jitter Buffer, Modem detection & auto-switch
			to G.711, Packetized Voice Protocol Unit (supports RTP/RTCP and AAL2
			protocol), G.168 compliant Echo Cancellation, LEC (line echo cancellation) with
			NLP, Asymmetric RTP stream
Voice Compression			G.711 + Annex I (PLC), Annex II (VAD/CNG format) encoder and decoder,
			G.723.1A, G.726(ADPCM), G.729A/B/E, iLBC, G.726 provides proprietary VAD,
			CNG, and signal power estimation, Voice Play Out unit (reordering, fixed and
			adaptive jitter buffer, clock synchronization), AGC (automatic gain control), Status
			output, Decoder controlling via voice packet header
DHCP Server/Client			Yes, NAT Router or Switched Mode
Telnet Server			Yes
Fax over IP			T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for
			Fax Pass-through (pending), Fax Datapump V.17, V.19, V.27ter, V.29 for T.38
			fax relay
QoS			Diffserve, TOS, 802.1 P/Q VLAN tagging
IP Transport			RTP/RTCP
DTMF Method			Flexible DTMF transmission method, user interface of In-audio, RFC2833, and/or
			SIP Info
IP Signaling			SIP (RFC 3261)
Provisioning			TFTP, HTTP, HTTPS (pending)
Control			TLS/SIPS , SIP over TCP/TLS
Management			Syslog support, HTTPS and telnet (pending), remote management using Web
			browser, Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS (Tos,
			DiffSery, MPLS), Auto/manual provisioning system
Dial Plan			Yes
UPnP			Yes
Power			Output: 12VDC / Input: 100–240 VAC/50-60 Hz
Environmental			Operational: 32o–104oF or 0o–40oC
			Storage: 10o–130oF / Humidity: 10–90% Non-condensing
Dimensions			115mm (L) x 75mm (W) x 27mm (H)
(H x W x D)
Short and long haul			REN3: Up to150 ft on 24 AWG line
Call		Handling	Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call transfer,
Features			hold, forward, mute, 3-way conferencing, message waiting, Do-Not-Disturb
			(DND), call-return service
Caller ID			Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Polarity		Reversal /	Yes
Wink
EMC			EN55022/EN55024 and FCC part15 Class B
Safety			UL
	Grandstream Networks, Inc.			HT-502 User Manual	Page 8 of 35
				Firmware 1.0.0.39	Last Updated: 03/2007