Recent speech technology research at Bellcore has contributed to several telephone network applications that are now either being deployed or tested. These applications include Automated Alternate Billing Services (AABS) for collect and third party calls using automatic speech recognition; reducing operator connect time in Directory Assistance (DA) via speech compression; an Automated Customer Name and Address (ACNA) service using text-to-speech synthesis; and remote security services such as credit card validation and home-incarceration checks using Speaker Identity Verification (SIV). In this paper, we describe each of these applications and the speech technology and human-interface issues critical for successful deployment.