Is it a free line?

The recently launched "micro-mail phone book" app once brushed the circle of friends, but only two days on the line, the "free" use of the query is constantly, mainly "micro-mail" so-called "free phone", the need for free WiFi environment, in the absence of free network environment still need to consume mobile phone traffic. Compared with operators, "micro-mail phone book" In the absence of free network, the advantages are indeed not very obvious.

In the 3.0 preview version of the line phone is the application of the industry's more sophisticated telecommunications operators communications technology, so in the call process without relying on WiFi wireless network or 3G/4G data network environment, it will not consume traffic, and will not appear network delay and Echo and other poor experience.

Ishin the release of the 3.0 preview version, its dedicated line phone function only one installation letter can dial each other's landline or mobile phone.

As the main function of the telephone, the first appearance of the independent menu in the main interface of the easy letter. Users in the use of easy letter, can easily through the "Phone" menu for direct dialing, and mobile phone address book and easy to trust friends to make high-definition calls, very convenient.