Hey, we are using Incoming call routing and it's working great, except once in a while we get spam/telemarketers calling - creating alert waking up oncall personnel in the middle of the night - NOT COOL.
Problem:
We have configured auto-attendant and it's great, the problem is alert is created before the auto-attendant even goes on the line, so spammer creates alert and causes us notification fatigue even if phone is dropped and no valid pin/key number is pressed as alert cascade to slack, OpsGenie app etc.
Attemps at workaround failed:
I tried not assigning any team on incoming call and filter on notification, but even if we remove default responders in Incoming call it gets assigned to team on auto-attendant list even though integration is global and not in the team.
I know there is blacklist feature, but it looks like it's always new number.