@techreport{scholz-endpoint-security-00, number = {draft-scholz-endpoint-security-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-scholz-endpoint-security/00/}, author = {Hendrik Scholz}, title = {{SIP endpoint security case study}}, pagetotal = 11, year = 2009, month = jun, day = 9, abstract = {SIP endpoints are subject to unwanted communication often perceived as Spam over Internet Telephony (SPIT). This document describes caveats on various layers which can be abused to send unsolicited messages. As a result users receive a degraded experience. The issues found are based on case studies of various events seen in VoIP provider networks.}, }