- VoIP GSM gateway with 8 channels bridging between GSM network and IP-based systems. Designed to slash the cost of telephone calls it can find the cheapest route and use the most economical SIM card
- Number of GSM channels (Max): 8
- Network type: 850/900/1800/1900MHz
- Protocol: SIP (RFC3261) IAX2
- Transport Protocol: UDP TCP TLS SRTP
- DTMF: RFC2833 SIP INFO In-band
- Codec: G.711A/U law G.722 G.723.1 G.726 G.729a.
- Echo Cancellation: ITU-T G.168 LEC
- LAN: 1 (10/100Mbps)
- Network: Static IP DHCP Client Firewall VLAN DDNS QoS OpenVPN
- NAT Traversal: Static NAT STUN
- Size: 340x210x44mm
- Power Supply: AC 100-240V 50/60Hz 1.5A MAX
- Operation Range: 0� to 40�C 32� to 104� F
- Storage Range: -20� to 65�C 4� to 149� F
- Humidity: 10-90% non-condensing