If you do not deactivate the Assistant service before deleting the app, your calls will continue to be answered by the assistant.
In this case, you will need to download the app, log in, and then go to Settings > Assistant Settings to find out if the service is active and then deactivate the service if you wish.
If you are still having problems, you can manually deactivate the service by entering your carrier-based forwarding code and your own number in the call tab of your phone.
Carrier-based cancel codes are as follows;
Turkey:
- Türk Telekom ---> ##21#
- Turkcell ---> ##002#
- Vodafone ---> ##21#
- Other ---> ##002#
Russia:
- MTS ---> ##002#
- Tele2 ---> ##002#
- Megafon ---> ##002#
- Beeline ---> ##002#
- Yota ---> ##002#
- Volna Mobile ---> ##002#
- Motiv ---> ##002#
- Tinkoff ---> ##002#
- Letai ---> ##002#
- Win Mobile ---> ##002#
- MTT ---> ##002#
- Other ---> ##002#
USA:
- Verizon ---> *73
- T-Mobile US --->##002#
- AT&T ---> ##002#
- Sprint ---> ##002#
- U.S. Cellular --->*73
- C Spire ---> *73
- Inland Cellular ---> *73
- Cricket ---> *720
- Metro by T-Mobile ---> *73
- Straight Talk ---> *73
- Cellular One ---> *73
- Viaero Wireless --->##002#
- GCI Communications (Alaska DigiTel & ACS Wireless) ---> ##002#
- Other ---> ##002#