Fluke Networks in February announced it had made final its acquisition of Visual Networks, and the company has already released a product from the deal.Fluke Networks' Visual UpTime Select software will give enterprise customers the ability to measure the quality of voice calls in real-time and historically, the company says. By measuring mean opinion scores (MOS), the software will be able to show network managers performance from an end-user perspective, which the company says will help them better tune their VoIP nets for optimal performance."[The software] is a solution for enterprises that want to manage the performance of applications on both a per-site and network-wide basis," Dennis Drogseth, vice president at research firm Enterprise Management Associates, said in a Fluke Networks' press release. "[It] provides network managers the requisite insight into how individual applications - such as Citrix or VoIP - interact and how they are impacted by network performance."The new VoIP release is available now at no additional charge to existing VoIP module customers as part of the Visual UpTime Select maintenance policy. For new customers, the pricing for the VoIP module begins at $795 per site.In December, Fluke Networks, which makes network protocol analyzers, announced it would acquire the software maker for about $75 million. The buy, company representatives said at the time, would give Fluke Networks the technology it needed to expand beyond network-centric management and troubleshooting tools to include more application performance monitoring. Visual makes two application monitoring tools: UpTime Select AppFlows and UpTime Select AppSummary, which the company first launched in 2004.Visual had recently released its own VoIP measurement, analyst and management tools, which at the time were seen as a complement to Fluke Networks' own voice testing products. The combination of Visual with Fluke Networks' technologies could accelerate the company's plans to move more toward delivering enterprise-scale software and shake off its handheld-only reputation. The acquisition could help Fluke Networks expand its view of enterprise networks to include more application management, much like executives at Network General hope the acquisition of Fidelia will do.