On 26 May 2009, at 11:48, Sriram wrote:
> Now the problem arises during billing , many customers of Telco X /  
> Telco Z / Telco Y somehow get to know the pilot number of telco Y  
> and they directly dial in.

How exactly? You might have it accidently listed somewhere. Worth just  
looking on online phone directories etc.

Steve

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