in order to enjoy a stereo headset, it is necessary to have the headset being used in both ears. Many may prefer to only put an earphone in one ear to have the other ear free. While this is certainly an option and personal preference, it will not provide stereo sound, as stereo requires two different speakers.
BS 25999 was BSI's standard in the field of Business Continuity Management (BCM).he first part of BS 25999 (BS 25999-1:2006) was published by the British Standards Institution in December 2006. The second part of BS 25999 (BS 25999-2:2007) was published in November 2007.
Area code 1-899 is used in Mexico, and also, no area code in North America is currently issued with the middle digit 9 since that number is reserved in case of future expansion. These numbers are free to the caller if dialed from a land-line phone but will incur mobile airtime charges for cellular phones.n the United States of America, Canada, and other North American Numbering Plan countries, a toll-free telephone number is any number in these area codes: