I initiated a call on my MacbookPro (running OS X Yosemite), but I cannot transfer it to my iPhone while it's in progress, as advertised on the Continuity feature.
The Apple Support article says:
Transfer the call to your iPhone: Unlock your iPhone, then tap the “Touch to return to call” banner at the top of the screen on your iPhone.
When I unlock my iPhone 6 Plus (running iOS 8.1), however, no banner appears at the top of the screen, and my phone seems to completely ignore the presence of a call.
Since there are no troubleshooting steps listed on the Apple Support guide for this issue, is there any way to troubleshoot this issue or to fix it?