JVoiceXML vs KloudTalk

JVoiceXML is a free, open-source VoiceXML interpreter for Java, described by its project as implementing VoiceXML 2.1. It supports dialogs that combine synthesized speech or digitized audio with spoken or DTMF input. Dialog functions also include recording, telephony, and mixed-initiative conversations. The architecture allows custom extensions, and demo implementation platforms support Java APIs such as JSAPI and JTAPI. The repository includes modules for Mary, MRCPv2, JSAPI 2.0, JTAPI, and text implementations. The project names platform independence as a major goal. Its repository identifies the license as LGPL-2.1 and provides release downloads. The latest listed version is 0.7.8, which added an SRGS grammar processor with SISR support, Microsoft LUIS as a grammar processor, bug fixes, and a move to Gradle. JVoiceXML is listed for API, Linux, and self-hosted use.

KloudTalk is a cloud-hosted business phone system providing cloud PBX and communications for small, mid-sized, and large enterprises. It offers DID and toll-free numbers in more than 50 countries, an auto attendant, and advanced call routing. Teams can build multi-level IVRs that direct calls to multiple groups, with text-to-speech prompts available in 13 languages. Call handling includes transfers, voicemail, custom greetings, and routing calls to colleagues around the world. Businesses can add click-to-call buttons to a website or mobile app. Calls are supported from landlines, mobile or GSM phones, PCs or Macs, and iOS or Android apps; listed platforms also include web, macOS, and Windows. The displayed plans list integrations, and KloudCon allows conference details to be added to Google or Outlook calendars. SOLO costs $25 a month for five users, CLUB is $45 a month for 10 users, and LEAGUE is $80 a month for 20 users. Each includes one free DID number, a web dashboard, Android and iOS apps, and an IP phone. A 14-day trial is available; KloudTalk says it offers free 24x7 customer support.