Don't know that my phone type matters, but I currently have a Samsung Galaxy S6 Edge+ (this also started happening on the previous phone - Galaxy Note 3).
When I first had my older Note 3, this was NEVER an issue:
I have an auto task built (via app called tasker and using an NFC chip) that forwards my cell phone to my work number when I am at work, so I don't have to worry about finding/answering my cell phone and all calls go to my office phone. When the task runs, it stalls at a point and I have to MANUALLY interject. It pops up with a screen that says : Call Forwarding (*72)....All incoming calls will be forwarded to (xxx) xxx-xxxx (I left the number out). Dial *73 to turn off call forwarding. at the bottom of that window are 2 choices: "back (cancels) OR TURN ON 9activates the call forwarding and places the actual call and ultimately forwards the phone.
This is some sort of confirmation screen that I am REQUIRED to interact with to complete the call forwarding process. It also presents the confirmation screen when I manually forward calls (not using tasker)
It also does this when deactivating call forwarding (*73)
A few Android versions ago (perhaps KitKat?) I never was required to confirm/acknowledge this action and I could forward calls automatically.
How do I shut this off. I cannot find anywhere in the phone settings to disable this confirmation screen
It is really quite annoying.
Thanks,
Rich