Wireless Telephony Applications Interface

The Wireless Telephone Applications Interface (WTAI) is a protocol used in conjunction with the Wireless Application Protocol (WAP) to allow a phone number to be linked to a web page.{{cite web|url=http://www.wapforum.org/what/technical/wtai-30-apr-98.pdf |title=Wireless Application Protocol - Wireless Telephony Application Interface Specification| access-date=2023-10-05}}