BS ISO/IEC 29341-26-3:2017 defines a device type named TelephonyServer that complies with [1].The TelephonyServer device is a UPnP device that allows control points to exploit a set of
telephony features such as managing telephony calls, messaging, presence etc via UPnP
though other UPnP enabled home network devices.All current amendments available at time of purchase are included with the purchase of this document.