You can send SMS with Netgsm application and initiate calls with Netsantral which is a Netgsm product.
You can reach detailed information about our tariffs:Netgsm tariffs
> SMS sending option added. Netgsm service has been added to the submissions on the Contact details page. You can now send SMS via Bitrix24 Contact page without entering the application interface.
Netgsm SMS and Calling Application
You can contact us anytime you need technical firstname.lastname@example.org
You must have a Netgsm account to complete the setup process.
For setup operations, you need to create a new API user using the Netgsm webportal User Actions> Define Downstream User link.
After creating a downstream user, you can setup with your Username and Password.
After installation, you can send SMS, initiate a call and create a group.