| Mobile |  | 1 GSM/CDMA/UMTS Channel |
| GSM Frequency |  | 850/900/1800/1900 MHz |
| UMTS Frequency |  | 850/1900 MHz, 850/2100 MHz, 900/2100 MHz |
| CDMA Frequency |  | 800 MHz |
| Antenna Splitter (4 in 1) |  | – |
| Protocol |  | SIP, IAX2 |
| Transport |  | UDP, TCP, TLS, SRTP |
| Voice Codec |  | G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex |
| Echo Cancellation |  | ITU-T G.168 LEC |
| DTMF Mode |  | RFC2833, SIP INFO, In-band |
| Console Port |  | – |
| Calling Type |  | Termination (VoIP to GSM/CDMA/UMTS), Origination (GSM/CDMA/UMTS to VoIP) |
| LAN |  | 1 10/100Mbps |
| Network Protocol |  | FTP, TFTP, HTTP, SSH |
| NAT Traversal |  | Static NAT, STUN |
| Network |  | DHCP, DDNS, Firewall, OpenVPN, Static IP, QoS, Static Route, VLAN |
| Dimensions (L × W × H) (mm) |  | 110 x 70 x 24 |
| Power Supply |  | DC 12V, 1A |
| Operation Range |  | 0°C to 40°C, 32°F to 104°F |
| Storage Range |  | -20°C to 65°C, -4°F to 149°F |
| Humidity |  | 10-90% non-condensing |