call forwarding
Hi.... I'm using an iPhone 4s. The carrier is ATT. Lately, I have started using the 'call forwarding' feature under 'phone settings'. I'm forwarding to a landline in the house that I'm living in. The reason for the forwarding is that I get little or no ATT cell reception in the house. So upon arriving at the house, I turn call forwarding on.... and vice versa, when I leave. At first, I'll see the 'call forward' icon on the phone screen at the top. But when I'm inside and the reception disappears, so does the 'call forward' icon.
My question is: Does the call forwarding feature foward calls when the iPhone is in a no reception location? Should I be concerned that the icon disappears when the signal disappears. I'm already aware that in order to turn 'call forwarding' on or off, you first have to be in a signal area in order for it to be transmitted to ATT's equipment. I've only been doing the call forwarding for a short time, so I don't have lengthy experience; I know that some calls have been forwarded to my landline, but that may have happened when I intermittently get a signal on the phone at the house. In any case, a definitive answer would be great!
Thanks....