What is ISDN?
Integrated Services Digital Network. Provides a user up to 56 kbps of data bandwidth on a phone line that is also used for voice, or up to 128 kbps if the line is only used for data.
CyberLink Support
Integrated Services Digital Network. Provides a user up to 56 kbps of data bandwidth on a phone line that is also used for voice, or up to 128 kbps if the line is only used for data.
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