Оne of the most popular number dialling types in the USA and Canada is 10 digit dialling, which represents itself a code of addressee’s location and directly the very number of the addressee.
Sometimes there is number 1 at the beginning of the set; this method is called 11 digit dialling. In this case number 1 is the code of the addressee’s country. 7 digit dialling is used in case if the addressee is situated by the same location code as the caller
TELES Communication Systems is a leading provider of equipment, solutions and services to fixed, fixed-mobile convergence and Next-Generation-Network (NGN) service providers. With more than 160 carrier network customers and millions of voice ports deploye
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