Specifications
Network interface setup wizard for DHCP, PPPoE, or fixed IP network environment Auto configuration support (Plug-n-Play)
OFS-VPA4/VPA8 series ATA
The OFS-VPA4/VPA8 is designed as a compact, high performance, and low cost VoIP Analog Terminal Adaptor (FXS Gateway). It comes with 4/8 FXS ports to interface with traditional analog phone sets or PBX trunk lines for VoIP calls. The HT-842R/882 is a full featured FXS gateway and is designed for easy installation and configuration. It supports the two most widely used Open VoIP Standards (SIP and H.323). This allows the HT-842R/882 to interoperate seamlessly with soft switches or IP PBXs made by various vendors. Its high performance offers toll quality voice, flexible networking, and feature-rich call functions. It is an ideal low cost solution for SME environment where multiple lines are required.
<img src="/img/pb/518/806/887/887806518_076.jpg" alt="voip gateway 2 fxo" ori-width="455" ori-height="327">
Advanced System Features
- Network interface setup wizard for DHCP, PPPoE, or fixed IP network environment
- Auto configuration support (Plug-n-Play) in encrypted or plain-text format
- Smart firmware management support (no need for manual firmware upgrade)
- Compatibility in multi-vendor open architecture VoIP networks
- Dynamic DNS (DDNS) support
- NTP and redundant DNS servers support
- QOS (TOS, Diff-Serve, 802.1p/q VLAN)
- NAT/Firmware traversal support with session border controller or STUN server
- Multi-language support
<img src="/img/pb/955/804/887/887804955_414.jpg" alt="voip gateway 2 fxo" ori-width="609" ori-height="219">
Standards Supported
- Open system SIP VoIP architecture for seamless integration into multi-vendor VoIP networks
- Standards include : H.323 V4.0, SIP 2.0, TCP/UDP/IP, RTP/ RTCP, HTTP, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, MD5 authentication, TOS, Diff-Serve, VLAN
- CODECs: G.711(a-law/u-law), G.729A/B, G.723
In-band/Out-band (RFC-2833/SIP INFO) DTMF dialing
Key Features
- SIP/H.323 protocols supported
- 2 Ports Ethernet switch with router function
- FXS port interface with traditional phone or PBX trunk line
- Caller ID Signal Generation for VoIP Calls
- Call Hold
- Call Forward
- Call Transfer
- Dial Plan
- Hot Line
- Call Waiting Function
- Phone Book
- Predefined User Commands for special call operations
- Configuration via built-in web server or auto provisioning server
- Voice Prompts for LAN and PC Port Addresses
Model OFS-VPA4: 4-FXS Port
Model OFS-VPA8: 8-FXS Port
Package Content
- OFS-VPA4 or OFS-VPA8 ATA
- AC/DC power adapter
- Ethernet cable
Regulatory Approval: CE, FCC