The OpenScape WLAN Phone WL4 telephone is an advance variant of telephones for mobile workplaces that use WLAN technology for transmission.
The OpenScape WLAN Phone WL4 telephone can be deployed in environments with the appropriate SIP platforms and use WLAN infrastructure which supports the dominant infrastructure standards IEEE 802.11a/b/g/n/ac.

An additional message license can be applied to this telephone to benefit from the advanced messaging functionality.