aTwitter users will get a new feature, it is voice chat which comes from Third-party named Jajah. With its voice chat, it is not only possible to send and reply the tweet with other users, but also they can calling directly by voice.
This feature which still in beta version is named Jajah@call and will be remade on Thursday in time at there. In this beta version period, the factory which featured that feature says that the call time duration is limited up to 2 minutes.
To use this feature, the both of users must own Twitter and Jajah account. About the security, i can say that this is safe because the users who don't want their number to be known by public can set it to be private numbers (unknown numbers).
They hope that for the future, this feature may be changed to be unlimited call time.
In this week, Facebook just also claimed about this feature on its page by third-party named Vivox.