IMTC SuperOp! 2015 is an annual interoperability testing event focused on VoLTE and IMS testing, scheduled for May 15-23, 2015, in Porto, Portugal, with expected attendance from around 80 engineers and over 20 companies. The event will feature organized and ad-hoc testing of voice and video over LTE, supporting various test cases and technologies related to IP communications. All handset and IMS core vendors are invited to participate, with special rates for IMTC members and affiliated consortiums.