Feature:
1. 2 VoIP and 2 GSM modules.
2. Compatible with SIP RFC 543,RFC 3261.
3. Local & Remote SIM Card Access.
4. Use general PC/SC Smart Card Reader
and plug it into PC's USB port.
5. Save telephone and international roaming
bills.
6. IP or SIM Card ID verifies Access authority.
7. Support UPLINK (GSM to VoIP),
DOWNLINK (VoIP to GSM)Routing .
8. Support VOICE REPORT IP function.
9. Upgrade Firmware by Internet.
10. Integrated web server for status and
settings.
11. Support SIP Proxy, or point to point
application.
12. Fix or Free dialing function.
13. Dialout Number from IP phone Call
Number.
14. 850/900/1800/1900 MHz.

Specification:
�@
VoIP:
Web Browser
IVR Interface
Uplink Route Setting
Downlink Route Setting

Network Protocol:
SIP v1 (RFC2543), v2(RFC3261)
IP/TCP/UDP/RTP/RTCP
IP/ICMP/ARP/RARP/SNTP
DHCP Client/ PPPoE Client
DNS Client

NAT Traversal:
STUN

Voice Quality:
VAD: Voice activity detection
CNG: Comfort noise generator
LEC: Line echo canceller
Packet Loss Compensation
Adaptive Jitter Buffer

GSM:
Quad-Band 850/900/ 1800/ 1900 MHz
Compliant to GSM phase 2/2+
�V Class 4 (2W@ 850/900 MHz)
�V Class 1 (1W@ 1800/1900MHz)