SJ Labs is a world leader in VoIP softphone development winning numerous industry awards over the years. Founded in 1999 and based in Solon, Ohio with development expertise in Russia and the US, our VOIP platform has hundreds of man-years of development and has been deployed for over five years. Our softphone has been used and downloaded by over 2 million users.

We have hundreds of ITSP customers around the world. Our diverse product line will meet your need regardless if you are a small, local new regional ITSP looking for a cost effective competitively featured client solution or a traditional large telecommunication company looking to enhance your branded triple threat options with customized state-of-the-art voice and video solutions integrated into your existing “look and feel” voice services platform.

Since 2002, when first in the world we introduced a PDA softphone, SJphone has supported most modern wireless PDAs or EDAs with Windows CE or Linux