Ring-back tones, where mobile owners can decide what they want to listen to rather than the traditional tone while they wait for someone to pick up the phone, are being promoted as a good way for telcos to make money. This article has some interesting stats about ring-back tones:
- South Korea Telecom got 30 percent of its clients to sign up for the service in the first year.
- Vodafone Italy signed up 570,000 clients in the first two months.
- T-Mobile had a total of 500,000 subscribers for the service in Germany, the UK and the Czech Republic at the end of June.