Currently, when the incoming calls are forwarded to a team, they follow the default routing rule (i.e. the 'else/last' routing rule). 

Allowing these calls to be routed via other routing rules can provide flexibility to forward the calls to different users depending on the time of the day/day of the week. For example, users may want the calls to be forwarded to a different escalation path on the weekends or out of office hours.

Workaround

Follow the instructions provided in https://community.atlassian.com/t5/Opsgenie-articles/Routing-Incoming-Calls-Based-on-Time-of-Day-via-Incoming-Call/ba-p/1668032