Internet telephony

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  1. SIP Demystified  

    SIP Demystified: 1st Edition (8/28/2001)

    (1)

    List Price $55.00

    Publisher: McGraw-Hill Professional Publishing

    Format BN.comUsed/New from
    Paperback $33.35 (Save 39%) $7.99
  2. SIP Trunking (3/4/2010)

    (7)

    List Price $67.00

    Publisher: Cisco Press

    Format BN.comUsed/New from
    Hardcover $46.79 (Save 30%) $55.27
  3. Fax, Modem, and Text for IP Telephony (5/2/2008)

    (1)

    List Price $59.99

    Publisher: Cisco Press

    Format Used/New from
    Paperback $58.63
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