Voip Think- Voice over IP - Asterisk and SER - SIP IAX and H323

3CX VoIP Phone System, IP PBX for Windows
3CX PBX and Phone System for Windows
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  • VoIP Protocols
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  • Telephones
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  • QoS (Quality of Service)
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  • Codecs
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  • Asterisk
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  • 3CX PBX
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  • SER (Sip Express Router)
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    D

    DID
    DTMF
    DSS1

    DID

    Direct Inward Dialing; A specially configured phone line from the telephone company that allows for dialing inside a company directly without having to go through an attendant. A DID line cannot be used for outdial operation since there is no dialtone offered.

    DTMF
    Dual-Tone Multifrequency; Dual Tone Multi Frequency. The signal a telephone company receives when a telephone's touch keys are pressed. Also known as Touchtone. Each key has a different frecuency.

    DSS1
    Digital Subscriber Signalling System No.1 - a signalling protocol used between the ISDN terminal devices and the PBX.

     

     
     
     
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