How does Tianyiyun switchboard use traffic to make calls?

Tianyiyun switchboard uses traffic to make calls, and it can be used immediately by simply handling a telecom fixed-line number, installing App software on the smart phone, or logging in through WeChat applet and enterprise WeChat portal. Tianyi switchboard is a kind of virtual call center switchboard service, which has many functions, such as voice navigation, telephone recording, jumping in case of busy, etc. The software has many functions, such as one phone with multiple numbers, portable fixed telephone, video conference, address book and so on, which can help users work together better on the move.