Conditional Call forwarding
I used to use conditional call forwarding on att. Basically I had my voicemail handled externally, by putting in an MMI code **004*XXXXXXXXXX# and forwarding to google voice. I noticed it is now no longer possible. both the MMI codes nor the forwarding section in the phone app calls > call forwarding > when busy, when unanswered, and when unreachable are all locked to ATT voicemail.
Regular all call forwarding seems to still be active.
Is this true that this feature is no longer offered ?
I am currently using a Pixel XL non att phone.