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�?��? IP �??信�?�??
The IP telephony era dates from the beginning of this century and has seen several more application options added to the list, including mobile cellular …

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This entry was posted on Thursday, July 23rd, 2009 at 2:10 am and is filed under IP telephony. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.