EZTalk. Apparently this ip-telephony operator is competently promoting its services. In the installer, you can find and install this program. Communication with them is much more expensive than with skype, but the truth is, and the connection is better. The operator's website is http://www.eztalk.ru. The procedure is the same as in I Skype: dial the number, there is a connection to the server. If everything is successful, you receive a call and wait for the subscriber to pick up the phone. Unfortunately, the program does not work with the phone book of the device.