The SIP Forum (www.sipforum.org) has announced details for its next interoperability testing event, SIPit 25, which will be held September 14-18 and hosted by the University of New Hampshire Interoperability Lab (UNH-IOL) in Durham, N.H. Conducted by the SIP Forum twice a year, SIPits are the world’s premier interoperability testing events for the Session Initiation Protocol (SIP), bringing together the leading SIP application developers, service providers and IP communications equipment manufacturers to ensure their SIP implementations work seamlessly together in an IP network testing environment. An important goal of the SIPit events is to help refine both the SIP protocol and its implementations in order to further establish SIP as a global interoperable standard for real-time Internet communication services.