 Name | Simple SIP (VOIP) based phone | Sipek VoIP | PortSIP VoIP SDK | OZEKI VoIP SDK | ABTO VoIP SIP SDK |
|---|---|---|---|---|---|
| Audio Peer 2 Peer | Yes | Yes | Yes | Yes | Yes |
| Video Peer 2 Peer | No | No | Yes | No | Yes |
| Audio Conference | no | no | Audio conferencing, support maximum 100 parties audio conferencing | no | yes |
| Video Conference | no | no | Video conferencing, support maximum 30 parties video conferencing | no | no |
| SIP SIMPLE | Yes | Yes | Yes | Yes | Yes |
| Billing | No | No | - | No | No |
| Termination based in timer and credit | - | - | - | - | No |
| Group Chat | No | - | Yes | No | No |
| File Transfer | - | No | - | No | No |
| Logging | Yes | Yes | Yes | Yes | Yes |
| registering | Yes | Yes | Yes | Yes | Yes |
| User management | Yes | No | - | Yes | Yes |
| Client Version | Yes | No | Yes | No | Yes |
| Developer documentation | No | No | Yes | Yes | Yes |