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(From The Nation (Thailand))
Byline: The Nation.
Advanced Info Service (AIS) has denied charges by CAT Telecom that its international-call subsidiary, Advanced International Network (AIN), used unfair practices in a trial of its service earlier this month.
CAT complained in a letter to the National Telecommunications Commission (NTC) last week that AIN failed to inform AIS's mobile-phone subscribers that if they used the "+" symbol to make international calls, their calls would be routed through AIN's network rather than through CAT's as usual.
CAT claimed this would confuse callers, because the AIS website still advised that entering the …