Configure Contact Methods in AlarmService
The topic explains about how to contact the user when onCall contacts calls the particular on-call user in the scheduled list. The contact methods have been defined in the AlarmService to route alarms to users by adding the AlarmRecipients.
EmailRecipient available in the email palette. It sends an email to the user's own email address. Refer to Configuring the EmailRecipient for more details.
SmsRecipient: available in the sms palette. It sends a text message to the user's own phone number. Refer to Configuring an SmsRecipient for more details.

Although these AlarmRecipients are configured with their email addresses or phone numbers. When a user receives the onCall notifications, it sends the notification to the contact details configured on the users themselves, not to the contact details configured in the AlarmRecipient. Typically, users can configure multiple OnCallContacts for the same AlarmRecipient.