(CNET) — Twitter users on Thursday will, for the first time, be able to make voice calls directly to each other through the microblogging service.
During the beta period, voice chats will be limited to two minutes on Twitter, the company Jajah said.

A new third-party offering from Jajah known as Jajah@call is expected to go into beta Thursday morning that will allow Twitter users to initiate a two-way voice chat with other users by typing “@call @username” — where “username” is someone’s Twitter ID — into any Twitter client.

During the beta period, the company said, the calls will be limited to two minutes, but the company will evaluate that length during beta. However, it sees the two minute period, after which the call will end, as “the verbal equivalent of a tweet.”

According to Jajah, an Internet communications provider with tens of millions of users, the service will allow a user to place a call to any other user, so long as the second person follows the first on Twitter and both have Jajah accounts.

The service is free to use and is expected to work on any Twitter-enabled device, from PCs to smart phones.