**

Phone number formatting and international standards are crucial for seamless integration with third-party services. However, clients often prefer specific formats over standardization, leading developers to use dynamic server-side formatting. A CFLib phoneFormat library and a CFML script with makeTelLink UDF help in formatting US phone numbers and generating clickable TEL links for mobile users. This approach enables flexibility while maintaining simplicity.

**

Source: https://dev.to/gamesover/phoneformat-maketellink-coldfusion-udfs-40fh