10 Jul
2006
10 Jul
'06
10:17 p.m.
You do not need hundreds of numbers, just carefully read hundreds of ITU
documents ;-).....
In fact blocking for instance 00xx7, 00xx8, 00xx9 and 00xx18 helps in many
countries. "Suspiciouse" countries like bahamas should be blocked anyway because
there is always somebody running a nice "money maker machine". And don't
forget to block satellite gateways because the often are used ffom cruzer phones
to make expensive calls (20 USD/min upwards)
However dial plans changing on daily base. Subscribe to the ITU page to get
latest informations.
Regards Christian