Description: Currently you are watching Code to having blue interest boxes porn video uploaded to: Blonde porn category. You can find more videos like Code to having blue interest boxes below in the related videos section. A blue box is an electronic device that generates the in-band signaling audio tones formerly used to control long-distance telephone exchanges. By generating the same tones employed by a telephone operator 's dialing console, a blue box user could route their own calls and bypass the normal toll collection by the telephone company. A related device, the black box , enabled one to receive calls which were free to the caller. The blue box no longer works in most Western nations, since to prevent this form of fraud, modern switching systems no longer use in-band signaling. Instead, signaling occurs on an out-of-band channel that cannot be accessed from the line the caller is using, a system called Common Channel Interoffice Signaling or CCIS. Many of these appear to have been originally three-digit codes, dialled without the leading area code, and the format of.
Added: 10.10.2018 at 00:33
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