To cancel Assistant conditional call forwarding, just follow the below-mentioned steps: 

Go to the phone dialer > dial your carrier disable code > press the green dial button.


Carrier NameDisable CodeAlternative Codes
AT&T ##004#

##67#
##62#
##61#
##21#

T-Mobile##004###67#
##62#
##61#
##21#
Verizon*73 
Sprint*740 
Cricket *730 
US Cellular*73 
Telus#67# 
Simple Mobile#67# 
Rogers#67# 
Bell Mobility*91 
Fido 
##67#
 
Metro PCS*38 
Straight Talk#67# 
Consumer Cellular - CC#67# 
Visible*73 
Xfinity Mobile*73 
Boost Mobile*740 
Total wireless*73 
Spectrum Mobile*73 
Freedom Mobile#67#