| E1/T1/J1 Port |  | 1 (Support PRI, MFC R2, SS7, E&M) |
| Protocol | | SIP (RFC3261) |
| Transport Protocol | | UDP, TCP, TLS, SRTP |
| DTMF | | RFC2833, SIP INFO, In-band |
| Codec | | G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex |
| Echo Cancellation | | ITU-T G.168 LEC |
| Network Protocol | | FTP, TFTP, HTTP, HTTPS, SSH |
| Network | | DDNS, Firewall, PPPoE, Static IP, QoS, Static Route |
| PRI switch types | | Euro ISDN, nation, Q.SIG |
| CAS | | MFC R2 (Argentina, Brazil, China, Czech Republic, Colombia, Ecuador, Indonesia, ITU, Mexico, Philippines, Venezuela) |
| SS7 | | ITU, ANSI, China |
| LAN | | 1 10/100Mbps |
| WAN | | 1 10/100Mbps |
| USB | | 1 |
| Dimensions (L × W × H) (mm) | | 213 x 160 x 44 |
| Power Supply | | AC 100-240V (12V 2A) |
| 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 |