Yahoo and JAJAH announced a partnership where JAJAH will operate Yahoo! Messenger’s VoIP platform. Yahoo! Messenger is Yahoo’s instant messaging (IM) platform, and JAJAH will manage PC-to-phone and phone-to-PC voice calls tied to it. JAJAH will take over the provision of the telephony infrastructure, payment processing, and customer care for Yahoo!’s premium voice users who make and receive voice calls through Yahoo! Messenger. Yahoo! Messenger operates in 200 countries with nearly 97 million users worldwide (comScore, February 2008). JAJAH operates an open source VoIP platform, and currently claims over 10 million users.