2015年9月25日,中国电信“天翼对讲”新品发布会在四川成都召开,中国电信同时携手产业链合作伙伴,共同见证天翼对讲开放合作联盟成立。为顺应移动互联网发展及用户使用习惯转变的需要,中国电信全新升级“天翼对讲”产品功能,致力于开启智能民用对讲新时代。中国电信天翼对讲业务基于中国电信广覆盖、大容量的移动通信网络和电信级的业务管理平台,利用Push to Talk(简称PTT)技术,通过 On September 25, 2015, China Telecom “Tianyi Intercom” new conference was held in Chengdu, Sichuan. China Telecom joined forces with industry chain partners to witness the establishment of Tianyi Telecommunication Interoperability and Open Cooperation Alliance. In order to comply with the needs of mobile Internet development and changes in user habits, a new upgrade of China Telecom “Tianyi intercom” product features, is committed to opening a new era of intelligent civil intercom. China Telecom Tianyi intercom business based on China Telecom wide coverage, high-capacity mobile communications network and carrier-class business management platform, the use of Push to Talk (referred to as PTT) technology, through