User's Manual

4-/8-/16-/24-/32-Port SIP Internet Telephony Gateway
3
1.3 Function Specifications
1.3.1 VGW-420FS / VGW-820FS
Product VGW-420FS VGW-820FS
Hardware
WAN
1 x 10/100BASE-TX RJ45 port
LAN
1 x 10/100BASE-TX RJ45 port 3 x 10/100BASE-TX RJ45 port
Voice
4 x RJ11 connection (4 x Foreign
eXchange Station)
8 x RJ11 connection (8 x Foreign
eXchange Station)
Weight
200g 1000g
Dimensions (W x D x H)
140 x 86 x 25 mm 240 x 154 x 37 mm
Power Requirements
100-240VAC, 50-60 Hz@DC12V 1A 100-240VAC, 50-60 Hz@DC12V 2A
Power Consumption
5W 18W
Protocols and Standard
FXS
 Dial Mode: DTMF and Pulse
 Pulse: 10 and 20 PPS
 Caller ID: DTMF/FSK CLI Presentation
 Max Cable Length: 3KM
 Reversed Polarity
 Programmable Call Progress Tone
Voice & Fax
 G.711A/U law, G.723.1, G.729A/B,G.726 and iLBC
 Silence Suppression
 Comfort Noise Generation (CNG)
 Voice Activity Detection (VAD)
 Echo Cancellation (G.168), with up to 128ms
 Adaptive (Dynamic) Jitter Buffer
 Hook Flash
 Programmable Gain Control
 T.38/Pass-through
 Modem/POS
 DTMF mode: Signal/RFC2833/INBAND
 VLAN 802.1P and 802.1Q
 Layer3 QoS and DiffServ
VoIP
 Protocol: SIP v2.0 (UDP/TCP),RFC3261,SDP,RTP (RFC2833), RFC3262,
3263,3264,3265,3515,2976,3311
 RTP/RTCP, RFC2198, 1889
 RFC4028 Session Timer
 RFC3266 IPv6 in SDP
 RFC2806 TEL URI
 RFC3581 NAT and report
 Primary/Backup SIP Server