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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.

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