Ethernet 2 Port VOIP GSM Gateway FXS Device 10 / 100 Base-T 256Mbits SDRAM

Ethernet 2 Port VOIP GSM Gateway FXS Device 10 / 100 Base-T 256Mbits SDRAM

Model: OFS-VPA-2

Voice Feature:

Support SIP 2.0 and correlative RFCs

Support IAX2 (optional) and T.38

SIP supports 2 SIP servers, pubic and private server. Can connect to public SIP server and private SIP server at the same time

Codec: G.711A/u, G.729,G.729a/b, G.726-32k

Echo cancellation: G.168 Compliance in LEC

Support Voice Gain Setting, VAD, CNG

NAT transverse: support STUN client

SIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of server, Peer to Peer/IP call

Support choose line automatically, using private server to dial automatically when public server disconnected

DTMF Relay:support inband, SIP info, RFC2833

SIP application: support call forward/ transfer/ holding/ waiting/ conference

Call control features: flexible dial map, hotline, empty calling No. reject service, black list for reject authenticated call, limit call, no disturb, caller ID

Network Features

WAN/LAN: support bridge and router model

Support PPPoE for xDSL and auto reconnect after disconnected by server

Support basic NAT and NAPT and DHCP client on WAN

Support DHCP server on LAN and DNS Relay/ PPPoE Relay

Support UPnP/ MAC/IP/Port Filter and Webs URL Filter/Content Filter

Support IGMP Proxy/IGMP Snooping and support openVPN(Optional)

Support ping test with keypad-command

Support main DNS and secondary DNS server

Support NTP Client and VPN (L2TP/PPTP)

Support Firewall/ Stateful Packet Inspection(SPI)

Support VLAN(802.1Q/P) and VLAN Switch mode

QoS with DiffServ(Optional)

Hardware Specification