In Hong Kong you can dial a pizza, dial a dinner or dial a prayer, and now you can dial a line - of cocaine.
Drug dealers are using a network of taxi drivers to deliver and sell the narcotic for HK$1,000 a gram to customers who have contacted them by phone or text message.
A number of users have spoken to the Sunday Morning Post detailing how they obtained the mobile numbers of dealers, who arranged a transaction with a taxi driver at a prearranged location.
In the past year, news of the operation has spread quickly by word of mouth and business is apparently booming.
As in many other big financial centres around the world, some of the professionals working in Hong Kong use cocaine recreationally despite the fact that the drug is illegal. Those found in possession of the drug face imprisonment.
One former customer said that after arranging a location, a customer would be given the registration number of a cab that would also have an out-of-service sign on it as if it had already been hired.
