iOS 10.1 problems with MagicJack app

Magicjack Go problems

All had been working fine until I updated my iphone 6s to
the new iOS 10.1 two days ago.

Now every call I make
with the magic jack go gets dropped immediately upon the person I call answering.

I have noticed that this happens all the time when I use the
Bluetooth headset connected to my iPhone but not always when I use the
speakerphone on the IPhone.

I only use the magicjack from home on wi-fi directly
connected to my router.

I have unplugged and plugged in the magicjack and the power
adaptor several times and this did not help.

The Bluetooth works fine with iphone on data plan calls.

What else can I do to fix this problem other than try to set
my phone back previous iOS?

Called "chat" with MagicJack and they admit to problems with iOS10 but said I could make a request for a change or revert back to the previous iOS.

I know that MagicJack needt to do the fixing but wanted to alert otherIphone users to the problem also.