鴻慶科技Voip/SIP phone app for iPhone and iPad 4.2 ( 6272 ratings ) Utilities Developer: 鴻慶科技 Free Current version: 1.0.8-5, last update: 4 years ago First release : 07 Feb 2020 App size: 173.27 Mb 使用 鴻慶科技Voip/SIP phone APP進行門口機通訊、門鎖控制並與社區人員通訊。