Charitable organizations are permitted to call cell phones even if they are registered on the Do Not Call List, which has raised concerns among consumers. Unlike landlines, where the caller incurs the cost, cell phone users pay for incoming calls, leading to frustration over telemarketing and charity calls that consume their minutes. Many users report receiving frequent calls from charities, often as a result of sharing their information through previous donations. There is a call for cell phone carriers to address this issue by reversing charges for unwanted calls and to implement better filtering systems. Consumers are encouraged to register their cell numbers on the Do Not Call List, which has been available since 2003, but manual dialing by telemarketers remains a loophole. There is a growing sentiment that regulations for cell phones should mirror those for landlines, and many believe that charities should not be allowed to contact individuals unless they have explicitly requested information.