| Logo | Company | Tested PBX | Interoperability |
|---|
| 2N | 2N® NetStar |  |
| 2N® Omega | |
| 2N® Omega Lite | |
| 3CX | 3CX Phone System | |
| Aastra | Aastra 400 | |
| Aastra 5000 | |
| Alcatel - Lucent | Alcatel - Lucent OmniPCXOffice | |
| Alcatel - Lucent OmniPCXEnterprise | |
| Anynode | Anynode | |
| Asterisk | Asterisk | |
| Asterisk | Asterisk Trixbox | |
| Avaya | Aura Comm. Manager / Session manager | |
| IP Office | |
| IP Office IP 500 V2 | |
| Broadsoft | Broadsoft | |
| Cisco | Cisco Call Manager Express | |
| Cisco Unified Communications Manager (CallManager) | |
| Cisco UC 320W | |
| Cisco UC 540 | |
| Cisco BE3000 | |
| Cisco BE6000 | |
| Cisco Webex Calling | |
 | Deutsche Telekom AG | Digitalisierungsbox Smart |  |
Telekom CompanyFlex | |
| Elastix | Elastix | |
| Simau | iQWell, Full-IP, Slim, Rack, Cloud, Virtual | |
| Ericsson-LG | Ericsson-LG iPecs LIK | |
| Ferrari Electronic | OfficeMaster Gate | |
| FreePBX | FreePBX | |
| Freeswitch | Freeswitch | |
| FRITZ! | FRITZ!Box 7490 | |
| Genetec | Genetec Sipelia | |
| Gigaset | Gigaset T300 PRO | |
| innovaphone | innovaphone Virtual Appliance | |
| Issabel | Issabel | |
| The Kamailio SIP Server Project | Kamailio SIP server | |
| KalliopePBX | KalliopePBX V4 | |
| Microsoft Teams | Microsoft Teams | |
| Microsoft | Microsoft Lync | |
| Mitel | Mitel 3300 | |
| Nec | Nec 3C IP PBX | |
NEC SV9100 / SL2100 | |
| NFON | NFON | |
| LAM | LAM Zirkon | |
| OasiTeam | OasiTeam | |
| Panasonic | Panasonic NS1000 | |
| Pascom | Pascom | |
| Samsung | Samsung OfficeServ 7000 series | |
| Savant | Savant SPX-1000 | |
| Siemens | Siemens HiPath 3000 V8 | |
| Siemens HiPath 4000 V6 | |
| Siemens OpenStage Gate View | |
| Microsoft | Skype for Business | |
| STARFACE | STARFACE | |
| Swyx | SwyxWare | |
| Tadiran Telecom | Tadiran Coral PBX MSW, UCX MSW, Coral PBX PUGW | |
| Toshiba | Toshiba IPedge | |
| Toshiba CIX | |
| Wildix | PBX WGW range | |
| Hotel PBX WGWH range | |
| Zoom Video Communications | Zoom Phone | |
- Work with limitation
- Incompatible