The .tel domains were initially offered to trademark holders in early December 2008. It is available for public registration from March 24, 2009. The cost of yearly registration varies between $12 and $35 (depending on the registrar).

A Warning About Domain Name Availability Checks
Avoid searching for domain name availability at the registrar websites. There have been reports of certain registrars and websites monitoring searches and then blocking the domain name. It is safer to use a software like Domain Name Analyzer (free or the Pro version) because it has an option to check for availability with minimum number of lookups and also use the registry whois servers. Since the software is run directly from your own computer, nothing is monitored or logged.
Go to the registrar website after you have decided the name to register and do the registration immediately. It is better to keep a credit balance in your domain name registrar account. This will ensure that your domain name registration is successful on the first try.
Domain Name Portfolio Management
Domain name portfolio management is a very important part of your Internet business. There have been posts on this subject before. So I will just link to them!
- Eleven Steps To Safeguard Your Domain Names
- Ever lost a domain name because you forgot to renew it?
- Our software products for domain name management
