The VoIP-120A is a SIP based advance VoIP adapter that convert 2 analog telephones/FAX into VoIP devices. Simply plug a normal telephone/FAX into the FXS port, then will turn the telephone/FAX into an IP phone/FAX.
The VoIP-120A supports 2 FXS ports that can make / receive 2 IP Phone calls for different VoIP cost-effective route. The VoIP-120A also comes with IP sharing function so you can share the Internet connection between VoIP and other computers.

Network Protocol
- SIP v1 (RFC2543), v2 (RFC3261)
- IP/TCP/UDP/RTP/RTCP
- IP/ICMP/ARP/RARP/SNTP
- TFTP Client/DHCP Client/ PPPoE Client
- Telnet/HTTP Server
- NAT/DHCP Server
Codec
- G.711: 64k bit/s (PCM)
- G.726: 16k / 24k / 32k / 40k bit/s (ADPCM)
- G.729A: 8k bit/s (CS-ACELP)
- G.729B: adds VAD & CNG to G.729
Voice Quality
- VAD: Voice activity detection
- CNG: Comfortable noise generator
- LEC: Line echo canceller
- Packet Loss Compensation
- Adaptive Jitter Buffer
Call Function
- Call Hold
- Call Waiting
- Call Forward
- Caller ID
- 3-way Conference
DTMF Function
- In-Band DTMF
- Out-of Band DTMF
- SIP info
SIP Server
- Registrar Server (three SIP account)
- Outbound Proxy
Tone
- Ring Tone
- Ring Back Tone
- Dial Tone
- Busy Tone
- Programming Tone
Phone Function
- Volume Adjustment
- Speed dial key
- Phone book
- Flash
IP Assignment
FAX
Security
- HTTP 1.1 basic/digest authentication for Web setup
- MD5 for SIP authentication (RFC2069/ RFC 2617)
QoS
- ToS field
- NAT Traversal STUN
Configuration
Firmware
Enviroment
- AC Power: 110-220V , 60Hz
- Temperature: 0℃ to 40℃
- Hmidity: 10%~90%RH
Product Weight (Kg)
Product Size
- ( L x W x H (mm) ) 99 x 99 x 32 mm
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