Mobile phone ring tones and polyphonic ringtones in particular, have generated millions in revenue from sales to phone users in different parts of the world. Perhaps this profitability in the business of downloadable ring tones has been responsible for the development of specialized services in this sector.

In the present scenario, the old style of downloadable mobile phone ring tones has evolved and become much more sophisticated. Innovative mobile tones and services based on them are ringing in the changes. And we thought that true tones or mp3 ring tones emanating from our handsets were the ultimate in mobile phone ring tones!

In this article, we talk about a new form of service based on mobile phone ring tones, which has made its presence felt in different markets across the world. The ring back tone, or tone replacement service, as it is commonly called, has raked in to the "moolah" for the providers of the same.

You may be wondering about the exact nature of the service that we are talking about. Tone replacement service is one where the dial tones that are prevalent in most phones are replaced by special types of mobile phone ring tones such as mp3 ring tones, true ring tones or real ring tones. As a mobile phone user, you are flexible to choose the type of ring tone that a person calling you would hear when he or she makes a call to your number.

The firms offering these ring tones collaborate with more than one content provider and secure licenses from music companies to offer real music as ring back mobile tones. Voice content in the form voice tones, celebrity voice tones and real tone ring tones are also made available to be used for this purpose.

Users are optimistic about the potential uses of this type of mobile tones. They can now personalize their phones, not only from outside but inside as well. This specialized service is most popular among teenagers and young people. However, people in their 20s, 30s, or even older are subscribing to the services of providers of these mobile phone ring tones. These mobile phone ring tones are patronized by people, who want to add an element of fun to their mobiles and their lives.

Generally, mobile phone users often pay for mobile phone ring tones, according to the specific number of downloads. However, the availability of the tone replacement service follows certain patterns. The service is often provided in a manner, wherein users are required to pay a monthly subscription.

The dial tone replacement service has been received well by mobile phone users. There are no issues regarding compatibility of these mobile tones with the handsets of specific users, as more often than then not, these mobile tones are loaded onto mobile networks directly. Experts and trade analysts are predicting high returns from the sale of this dial tone replacement service.