This paper describes building of voice applications using speech technologies and remote sources of information. Examples of Multichannel Interactive Speech Self-Service Systems (MISSS) are shown. The application Aeroflot-Info enables telephone subscribers to obtain flight schedule and flight status information from the remote public web-service of “Aeroflot-Russian Airlines” company. Presented Multichannel Interactive Speech Self-Service System is build as a scalable, standard based system using state-of-the-art technologies such as SIP for telephone infrastructure, VXML for dialog control, ASP.NET for dynamic content generation, web-services SOAP for information access, speaker-independent speech recognition technology for understanding user input. The application Financial Services has distributed architecture and enables telephone subscribers to obtain the official exchange rates and other information from web-service of Central Bank of the Russian Federation.