How do I answer an incoming call when I am already on a call?

Question

While on a call, how do I switch to another incoming call. and back again?  Droid Razr Maxx.

SuzyQ · Accepted Answer

See page 23 of the user manual:  https://www.motorola.com/moto_care/manuals/RAZR_RAZRMAXX_UG_JB.pdf