International calling is only available for enterprise accounts. It is an additional $14.99 per line, per month. Since you need an assigned number to add international calling, the total per line with international calling would be $24.98 per month.
We support calls to over 165 countries, providing you the opportunity to keep in touch with people all over the globe.
If you do you not have an enterprise account, you may simply sign up at https://my.sideline.com
Once you’re logged in to the teams portal, you will automatically be in the Overview tab, navigate to the Numbers tab to add international calling
You will see an options column with checkboxes below. Check the box for the line you wish to add international calling for. However, you can only add one line at a time.
Confirm the subscription by clicking Buy
If you need further assistance or have any questions, please submit a request.