Importing and updating contacts
by 
To automate the import and update of contacts from one application to another.
Emails, SMS and voice messages
by
To automate the sending of messages between Digitaleo and your application.
What you can do with 
Synchronise your contacts on a one-way basis
For example: update a contact in Infusionsoft when they click on an email sent with Digitaleo.
Automate your SMS, emails and voice messages
For example: send an SMS to a contact using Digitaleo when an invoice is generated in Infusionsoft.