It provided for age verification and protections for compulsive gamblers.

Since 2007, however, age verification has been mandatory in Germany - buyers must be 18 or over.

Some beer vending machines also require age verification.

However, to access the adult sections requires age verification.

In Texas, the driver's licenses can be electronically scanned for age verification, but the information cannot be downloaded from the machine.

For such keywords, age verification using national identity number is required.

He said it was only a matter of time before the carriers resolved what he termed the fundamental roadblock: age verification.

"I think it's really about age verification more than anything else," he said.

In England, for example, age verification is handled at the point of sale for cellphones.

And we have a whole series of proofs in place for age verification.