Extreme Networks, Inc. has enhanced its Summit WM wireless LAN (WLAN) solution with a new software release that enables advanced wireless voice and mobility applications. With new Voice over wireless LAN (VoWLAN) capabilities, enterprises can migrate to converged wired and wireless environments. Extremes Networks says that organizations are expanding their use of WLANs to boost user efficiency and collaboration with the use of wireless voice and to gain flexibility in their infrastructure. The company’s new WLAN software enhancements are intended to ease deployment and operations, and are highlighted by support for standards-based Call Admission Control, Intelligent Roaming and power management for devices using Unsolicited Automatic Power Save Delivery (U- APSD). Extreme Networks recent upgrades build upon existing wireless voice capabilities and certifications on the Summit WM platform, which include certification with SpectraLink, Avaya and Vocera IP communication devices. The Summit WM is also compliant with IEEE 802.11e/WMM QoS priority mechanisms. Extreme Networks provides Call Admission Control on a per session basis, allowing voice traffic to be managed specifically to help ensure service quality and network uptime. A client can request a new voice session with specific voice-quality parameters. The Summit WM can accept or deny the session request based on the availability of network resources to support expected voice-quality. This allows enterprises to deploy large scale voice and data wireless networks with traffic management. The Call Admission Control implementation is compliant with IEEE 802.11e TSPEC. Extreme Networks’ Access Points (APs) advertise their traffic load as specified in IEEE 802.11e standards. With Intelligent Roaming, QoS-enabled wireless LAN clients can use this information to make informed decisions to roam to a lightly loaded AP, helping balance the client load amongst access points and also to speed-up roaming.