6 Apps: WhatsApp, Telegram, Signal, Line, TeleGuard, Zangi Call Waiting Incoming Call. iPhone, iOS1

6 messengers call to the same iPhone?! Oh, yeah! Here is how it looks when you receive incoming multiple calls on WhatsApp, then Telegram, Signal, Line, TeleGuard and Zangi in sequence. Depending on the calling app, you may have two or even three options on incoming call: Decline, End & Accept, Hold & Accept. On top of that, in this video I show how to switch to iOS native -in-call display and swap calls. For instance, put Line on hold and switch to a Zangi call. Enjoy!