All you need to use Skype Connect™ is a compatible SIP-enabled PBX that supports:
| Requirement | Description |
| Protocol | SIP (RFC3261) |
| IP transport | UDP and TCP/IP |
| Authentication | SIP DIGEST or IP Authentication |
| Channels | Maximum of 300 simultaneous calls per SIP Profile |
| Codecs | G.729 and G.711 ulaw/ALaw |
| DTMF method | RFC2833 |
| Number format | E.164 (country code and national number); international number format for all calls |
Learn more about the equipment requirements of Skype Connect.
For more information on Skype Connect, refer to our PDF guides.
Microsoft