Answer:

In this digital world where everything is present on the Internet, where one sitting in anywhere can know about anything present anywhere in the earth or everywhere. The best way for geographically dispersed teams to collaborate effectively is buy using tools available on the internet that are meant for teamwork. Some of them are free to use while some are paid with extra premium features.

Three tools available in the market are:

1. Google Hangouts – This app is from Google and avails the feature of Voice and Video calls including chats with the team members.

Pros - Voice, video & Screen Sharing facility.

Cons - Not more than 100 people at a time, No File sharing Feature.

2. SmartFile – This app allows to share and transfer any size files also allows an FTP feature for a team.

Pros - Any Size file sharing.

Cons – No Video or Voice Feature.

3. Slack – This app allows a team to chat with each other with some good collection of Gifs available as additional feature to it. Furthermore, it allows to share files too.

Pros – Chat support with file sending feature.

Cons – No voice or Video Support.

These all Tools allows a team to communicate with each other from anywhere where Internet is available.