App does not work on bluetooth now.

All had been working fine until updated my iPhone to OS10.1 now every call is dropped just after the other person answers.This used to work with my bluetooth headset until the OS update by Apple.
When I chatted with Support for MagicJack they only said I should go back to my previous OS which Apple says you can not do.
I tried uninstall of App,reinstall,Reset iPhone, Powercycle MagicJack Go adaptor all to no Joy.
Dont buy this till MagicJack decides to fix known problems. Support is non responsive with no other fix but to break your phone to fix their upgrade problems.

Bluetooth feature broken about magicApp Calling & Messaging, v4.17.4