| Features | | Sonus SBC 2000 (formerly NET UX 2000) | |
|
| |  | |
| Appliance | | yes | |
| Call Log for Historical Data | | yes | |
| Call Progress Analysis | | | |
| Answering Machine Detection | | N/A 3rd party | |
| Fax Tone | | yes | |
| SIT Tone | | yes | |
| Voice | | yes | |
| Caveats | | no | |
| Codecs | | | |
| Additional Codecs | | yes | |
| G.711alaw | | yes | |
| G.711ulaw | | yes | |
| G.723.1 | | yes | |
| G.726 | | yes | |
| G.729AB | | no | |
| GSM | | no | |
| RFC 3389 (VAD/CNG) | | yes | |
| Current Firmware | | 2.0.1 v118 | |
| Delayed Media | | yes | |
| DHCP | | yes | |
| Dial Plan Capabilities | | | |
| Dial Plan Routing | | yes | |
| Digital Spans | | | |
| BRI | | no | |
| E1 | | yes | |
| ISDN | | yes | |
| T1 | | yes | |
| DTMF | | | |
| Inband | | yes | |
| RFC 2833 | | yes | |
| Early Media | | yes | |
| ISDN Protocols | | | |
| 4ESS | | no | |
| 5ESS | | no | |
| DMS | | yes | |
| INS1500 | | no | |
| NI2 | | yes | |
| QSIG | | yes | |
| Maximum Number of Analog Spans | | no | |
| Maximum Number of Digital Spans | | 16 | |
| Maximum Number of Voice Channels | | no | |
| Modular Component Support | | yes | |
| MWI | | yes | |
| Network Interface | | 4x 10/100/1000 | |
| Proxy Capabilities | | | |
| Backup Proxy | | yes | |
| Outbound Proxy | | yes | |
| Primary Proxy | | yes | |
| RFC 3263 | | yes | |
| Putback Transfer | | no | |
| QoS | | | |
| 802.1p/Q | | yes | |
| ToS | | yes | |
| Re-invite Support | | yes | |
| Security | | | |
| SRTP | | N/A 3rd party | |
| TLS | | N/A 3rd party | |
| T.38 Fax Support | | yes | |
| TFTP/FTP configuration | | no | |
| Web server configuration | | yes | |
