Fix WOPI Proof Errors by Checking Keys, Discovery, and URLs
Trace Collabora WOPI proof failures to mismatched keys, stale discovery data, clock drift, or proxy URL changes—without weakening validation.
Tango is a free texting and calling application on devices running Android, iOS and Windows Phone. Although there are many OTT applications coming later, with many advanced features, Tango is always loved and trusted by users. Download Tango for free and have fun chatting with your friends.
Connect : you can send one-to-one messages with users, or group chats for up to 50 members; make high quality voice and video calls; The Tango Out feature makes free calls to mobile phones and landlines to any country in the world at the cheapest rates.
Social networks : you can search for new friends, nearby friends or anyone in the world; Share photo; Update News Feed during the call.
Entertainment : discover and update information from favorite channels; listening to music; play games and send presents.
In this article, Download.com.vn will guide new users to set up accounts and group chat on Tango. Download Tango free to your phone and computer for free from Download.com.vn below.
>> Android, iOS, Windows Phone
After downloading Tango to your device, you can open the application immediately. Tango takes you to a screen where you can easily sign up for an account with your phone number. Select VN country code (+84) and enter your phone number. Phone number is not necessarily the number in the device, you can enter any phone number.
The most convenient way is that you get information from Facebook, from which Tango can sync and your information will be displayed fully in Profile. Or you can enter the information manually including name and email.
After successfully creating an account, Tango will sync your contacts and tell you who is using Tango on your device's contact list. You can create instant conversation with your friends in 2 ways:

Find the contact name you want to send the message. Or you can select multiple contacts to create a group and touch the red triangle icon below to chat right away.

You will then be directed to the screen below. Here, you can customize the group and give it a name.

To delete a single or group conversation, touch and hold the conversation to delete to display an option >> touch delete conversation.
The above is a basic guide to help Tango new users create accounts and make quick calls. Good luck!
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