VXML stands for VoiceXML
(VoiceXML) is a common language for creating voice applications that can interact with users through speech recognition and text-to-speech. VoiceXML server is part of the Cisco Unified Customer Voice Portal (CVP). VXML licenses are required for the number of self-service ports plus queued sessions on the VoiceXML server. A self-service port is a port that provides interactive voice response (IVR) services to a caller. A queued session is a session that is waiting for an agent to become available