Yeastar Neogate TG400 4 Port GSM VoIP Gateway
Key Features

• Number Of GSM channels (Max):4
• Network Type:850/900/1800/1900MHz
• Protocol:SIP (RFC3261), IAX2
• Transport Protocol:UDP,TCP,TLS,SRTP
• DTMF:RFC2833, SIP INFO, In-band
• Codec:G.711 a/u-law, G.722, G.726, G.729a, GSM, ADPCM, Speex
• Echo Cancellation:ITU-T G.168 LEC
• LAN:1 (10/100 Mbps)
• Network:Static IP, DHCP Client, Firewall, VLAN, DDNS, QoS, OpenVPN
• NAT Traversal:Static NAT, STUN
• Size:213x160x44mm
• Power Supply:AC 100~240V/50~60Hz 0.5A MAX
• 1 Year Warranty