Playing the role of stalking horse for wireless carriers, VeriSign last week announced trials at three major universities to integrate on-campus Wi-Fi to any wide-area wireless carrier network for data and voice roaming between networks.If the service for VoIP and data proves successful, VeriSign will OEM the technology to wireless carriers, which in turn will sell it not only to university campuses but also for use in the corporate campus.Although the Wireless IP Connect Service will be used primarily to link mobile and Wi-Fi networks, it can also connect to a wireless carrier any device with an IP connection. According to Lynda Starr, senior analyst for IP communications at Frost & Sullivan, wireless carriers have long been fearful that ubiquitous Wi-Fi might reduce the number of subscribers — or at least the amount of call time — on their networks. The VeriSign capability for seamless roaming between networks puts the carriers squarely back in the game, she said. When fully productized, the service will consolidate customer invoicing to one bill, from one carrier, for cellular and VoIP calls. Technology Industry