Yes. When specify the phone numbers to be called in a Call List, multiple alert recipients are called simultaneously. Also the Call List name is included as a parameter in the API Url so your HTTP Notification setup does not change if you change a recipient on the same call list. By contrast, if you specify a single phone number, you’ll have to re-generate your API Url again with the new number, then copy and paste it into the HTTP Notifications setup again. Currently, a re-generation is required if you choose a different call list too.
Posted in: Uncall for PRTG