Issue Summary

The notifications of the Incoming call alerts unlike regular alerts, uses the on-call users "Incoming Call Routing" notification rule instead of the "New Alert" notification rule.

The difference is that the "Incoming Call Routing" notification rule:

1. does not allow delay of any of the notification methods
2. does not have a repeat function 

Suggested Solutions

To please give the Incoming Call Routing notification rule the following capabilities  (like in the "New Alert" notification rule):

1. delay notification methods within
2. repeat the notification rule

Workaround

If the Incoming Call is only forwarded to one escalation policy or team, the following workaround can be used:

1. Turn on Advanced integration mode and
2. Populate the "Responders" field with the appropriate Escalation policy or Team. 

The resulting Incoming Call alert will behave like a regular alert using the on-call user's "New Alert" notification rule which allows the on-call user to delay notification methods and/or repeat the applicable "new alert" notification rule.

Suggest creating a separate "New Alert" notification rule with the following filter:

• Source contains phone
• Name it appropriately, like: "IncomingCall Alert"

and move this notification rule above the default all notification rule so that it gets evaluated first.