Is there a way to detect if call is in progress? Phone Event

First you need 3 profiles to monitor the phone state:

Event: Phone Idle
Variable Clear %Phoning

Event: Phone Offhook
Variable Set, %Phoning, 1

Event: Phone Ringing
Variable Set, %Phoning, 1

Then you can use 'If %Phoning Is Set' to see if you're phoning.