3578931 - DBCON connection to 'Microsoft SQL Azure (RTM) - 12.0.2000.8 Edition: SQL Azure' fails throwing "TCP Provider: Error code 0x2749"'

You are up to configure a SAP NetWeaver ABAP DBCON (multiconnect) connection to a 'Microsoft SQL Azure (RTM) - 12.0.2000.8 Edition: SQL Azure' database which runs on a server other than the SAP NetWeaver ABAP system server. 
In ABAP DBACockpit, testing the Database Connection Defined in DBCON or in SE38, by executing report ADBC_TEST_CONNECTION, returns following error message:

B  ***LOG BY2=> sql error 0      performing CON [dbsh         ....]
B  ***LOG BY0=> <message text not available> [dbsh          ....]

C  (99) [HYT00] [Microsoft][ODBC Driver 1x for SQL Server] Login timeout expired
C  ERROR: -1 in function SQLConnectWithRetry (SQLConnectWithRetry) [line  ....]
C  (100..) [Microsoft][ODBC Driver 1x for SQL Server] TCP Provider: Error code 0x2749
C  ERROR: -1 in function SQLConnectWithRetry (SQLConnectWithRetry) [line  ....]
C  (100..) [Microsoft][ODBC Driver 1x for SQL Server] A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. 

SAP NetWeaver ABAP or other SAP S/4HANA Cloud products with an ABAP stack

• DBCON connection source system is: ABAP stack system
• DBCON connection target system: Microsoft SQL Azure (RTM) - 12.0.2000.8 Edition: SQL Azure database

SAP NetWeaver ABAP DBCON, database multiconnect, SQL Server, Microsoft SQL Azure (RTM) - 12.0.2000.8 Edition: SQL Azure, not supported, Cloud-Native, Cloud-based, non-Cloud based, with SQL Server Compatibility, SQL Server, Azure, AWS, ODBC, DBSL, dbacockpit, Iaas, PaaS, RDBMS, , KBA , BC-DB-MSS , SQL Server in SAP NetWeaver Products , BW-SYS-DB-MSS , BW on Microsoft SQL Server , Problem