How to Add an Incoming Caller to a Conference Call. During an ongoing call, you may come across a situation where a new caller wishes to participate in the discussion.

You can add up to five people to a conference call on your iPhone. To start a conference call, call the first person, then ...

To video call between Android and iPhone, ensure both phones have downloaded the same third-party messaging app, such as WhatsApp or Skype. Then add the appropriate phone numbers as contacts and ...