Following its listing, STM has evolved to be known as Telekom Malaysia Berhad (TMB), and the Company pushed ahead with new products to increase its subscriber base, launching services such as TELECAJ, a billing option for those who travelled a great deal; Malaysia Direct for those travelling overseas; and Telestock, a dial-up facility to retrieve up-to-date share prices. In 1992, it introduced video conferencing facilities nationwide as well as Centrex, a virtual PABX system that allows larger organisations the option of functioning without operators, enabling customers to reach staff directly. In 1993, the nationwide digital transmission network and the Integrated Services Digital Network (ISDN) pilot projects were completed.