Below table describes some key features of miniSIPServer.
'yes' means the feature is supported, 'no' means the feature isn't supported.
| Features | 20 clients | 50 clients | 100 clients | 300 clients | 500 clients |
|---|---|---|---|---|---|
| Local users (extensions) | 20 | 50 | 100 | 300 | 500 |
| External line | 10 | 25 | 50 | 150 | 300 |
| Simultaneous calls | 10 | 25 | 50 | 150 | 250 |
| CPS (call per second) | 3 | 8 | 15 | 35 | 50 |
| Call barring | yes | yes | yes | yes | yes |
| Call detail record (CDR) | yes | yes | yes | yes | yes |
| Call recording | yes | yes | yes | yes | yes |
| Customized DNS | yes | yes | yes | yes | yes |
| Dial plan | yes | yes | yes | yes | yes |
| Event channel | yes | yes | yes | yes | yes |
| GUI | yes | yes | yes | yes | yes |
| IP address black&white list | yes | yes | yes | yes | yes |
| IPv6 | yes | yes | yes | yes | yes |
| Presence and instant message | yes | yes | yes | yes | yes |
| Routing group | yes | yes | yes | yes | yes |
| SIP over TCP | yes | yes | yes | yes | yes |
| SIP over TLS | yes | yes | yes | yes | yes |
| SIP over UDP | yes | yes | yes | yes | yes |
| SIP trunk | yes | yes | yes | yes | yes |
| STUN | yes | yes | yes | yes | yes |
| WEB management | yes | yes | yes | yes | yes |
| Auto attendant | yes | yes | yes | yes | yes |
| Busy lamp field (BLF) | yes | yes | yes | yes | yes |
| Call blocking | yes | yes | yes | yes | yes |
| Call forward on unreachable | yes | yes | yes | yes | yes |
| Call forward on unconditional | yes | yes | yes | yes | yes |
| Call forward on busy | yes | yes | yes | yes | yes |
| Call foward on no-answer | yes | yes | yes | yes | yes |
| Call park | yes | yes | yes | yes | yes |
| Call pickup & Group call pickup | yes | yes | yes | yes | yes |
| Call queue | yes | yes | yes | yes | yes |
| Call retrieve | yes | yes | yes | yes | yes |
| Call transfer (attended) | yes | yes | yes | yes | yes |
| Call transfer (unattended ) | yes | yes | yes | yes | yes |
| Call transfer (semi-attended) | yes | yes | yes | yes | yes |
| Call waiting | yes | yes | yes | yes | yes |
| Caller display number | yes | yes | yes | yes | yes |
| Conference room | yes | yes | yes | yes | yes |
| Direct inward system access (DISA) | yes | yes | yes | yes | yes |
| Follow me / Find me | yes | yes | yes | yes | yes |
| Hunting group | yes | yes | yes | yes | yes |
| IVR-XML | yes | yes | yes | yes | yes |
| Long duration control | yes | yes | yes | yes | yes |
| Messages waiting indication (MWI) | yes | yes | yes | yes | yes |
| Music on hold | yes | yes | yes | yes | yes |
| One number, multi-devices | yes | yes | yes | yes | yes |
| Operator break-in and overstep | yes | yes | yes | yes | yes |
| Ring group | yes | yes | yes | yes | yes |
| Speed dial | yes | yes | yes | yes | yes |
| System black list | yes | yes | yes | yes | yes |
| Time condition | yes | yes | yes | yes | yes |
| Voice mail | yes | yes | yes | yes | yes |
| Caller prepaid | yes | yes | yes | yes | yes |
| Call back | yes | yes | yes | yes | yes |
| Trace calls | yes | yes | yes | yes | yes |