Press Press Releases 23. Jan. 2002: PayCircle: HP, Lucent, Oracle, Siemens and Sun establish consortium for standardizing mobile payment [ download ] 21. Feb. 2001: Paymentgroup: Siemens Information and Communication Mobile (IC Mobile) and Hewlett-Packard Company (HP) announced at the 3GSM World Congress 2001 in Cannes the formation of a consortium to develop an open standard for mobile e-service payments and an uniform application programming interface (API) for mobile payment systems. [ download ]