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    What are the system requirements for my SIP-enabled PBX?

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    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.

    No emergency calls with Skype
    Skype is not a replacement for your telephone and can't be used for emergency calling