Voiceglue is described as 'Our overall goal is to provide a full-featured integration of open source telephony environments and OpenVXI including as many features as possible while conforming to the VoiceXML standard. Currently Voiceglue only supports Asterisk' and is a Text to Speech service in the social & communications category. There are eight alternatives to Voiceglue for a variety of platforms, including Linux, Web-based, Self-Hosted, SaaS and Raspberry Pi OS apps. The best Voiceglue alternative is RingCentral Engage Digital. It's not free, so if you're looking for a free alternative, you could try The Voximal stack. Other great apps like Voiceglue are Aspect Prophecy, Cisco IOS Voice XML Browser, Avaya Voice Portal and Plum DEV.