... it from the device. If a contact profile has changed, or if new contacts have been added, the information will be correspondingly upd ated in the device.
On your device, click Settings and select Mail, Contacts, Calendars>Accounts.
Click Add Account.
Select Other > Add CalDAV Account.
Specify your Bitrix24 address as server (<your_domain>.bitrix24.com). Use your login and password.
A secure connection to domains is required, so indicate https protocol via port 1443 in the Advanced Settings of the CalDav ...