Successful SIP PBX Interop's
- 3CX ThinkTel's Interop Doc
- Acme Packet
- AdTran
- Asterisk (All versions)
- Audio Codes Mediant E-SBC with Microsoft Lync ThinkTel's Interop Doc
- Avaya - Aura & IPO Configuration Guide
- Patton4991 ThinkTel's Interop Doc
- Barracuda Cudatel Phone System 270 ThinkTel's Interop Doc
- Broadsoft
- CallWeaver
- CCM (Cisco Call Manager)
- Cisco UC520 (Call Manager Express & Call Unity Express)
- Cisco UC540 Configuration Guide
- Cisco C881 Voice 15.3.(3)M5 ThinkTel's Interop Doc
- Communigate Pro
- Dialogix
- Digium G100/G200 ThinkTel's Interop Doc
- Ericson-LG (UCP AND EMG80-P2 system.)) NINE-ONE-ONE's Interop Doc
- Fonality Trixbox Pro ThinkTel's Interop Doc
- Freeswitch
- Linksys
- MITEL MCD ThinkTel's Interop Doc
- Natural Convergence
- Next Tone
- Nortel SIP Gateways
- Panasonic ThinkTel's Interop Doc
- Pingtel
- Planet IPX Configuration Guide
- Epygi Quadro-IP-PBSx ThinkTel's Interop Doc
- Sangoma SBC ThinkTel's Interop Doc
- Siemens
- Sutus ThinkTel's Interop Doc
- Talkswitch Users Guide and ThinkTel's Interop Doc
- Toshiba Strata CIX Configuration Guide
- VegaStream
- Vonexus
- YeaStar ThinkTel's Interop Doc
- Zultys ITSP ThinkTel's Interop Doc
