Users have to update the number on which they want to forward the calls, this would be helpful when the user is not in front of their system and they can receive calls to their mobile number.
From here you can set the number to whom you wanted to forward the call.
Call forwarding works with the following parameters:
Make sure the mobile app is logged out of.
The forwarded number should be in service.
Making sure enough credit balance is available for the call to get forwarded (for both incoming call to callhippo number and outgoing to the personal number).