Just wanted to give an update..
Ive owned the RCA doorbell since day 1, and have always had trouble getting the 2 way video to alert me for every doorbell ring. I have an older phone, the Samsung Galaxy S7 with my memory nearly maxed.
I cleaned up the phone today, getting rid of alot of apps I never use. Have about 4 gigs free now. I also double checked that this app can run in the background (turned on something in the battery tab for this app)
I am now 3 for 3 on doorbell pushes now.
Pretty stoked.
I knew it had something to do with this old assss phone, since others had this working fine.