slagfrekvens
Slagfrekvens, also known as "slamming" or "call slamming," refers to a deceptive telecommunications practice where a customer is tricked into subscribing to a premium-rate service without their full knowledge or consent. This often occurs through misleading or fraudulent sales tactics, such as false advertising, high-pressure sales techniques, or unauthorized changes to a customer’s phone plan. The term originates from the sound of a phone dial tone ("slag") being altered or manipulated during the call setup process, which can lead to unexpected charges.
In many countries, including Norway, such practices are illegal under telecommunications regulations. Consumers are protected by
To avoid slagfrekvens, consumers are advised to carefully review their phone bills, monitor incoming calls and