Nortel NT5B74 Application Module Copper Release 4.0 (Refurbished)Norstar Voice Mail provides advanced voice processing and auto attendant features integrated with the Norstar telephone systems and provides language support for English, Spanish, and French. The simplicity of telephone display prompting and activation through soft keys on the telephone is extended to the voice messaging application. The Norstar Applications Module (NAM) can be expanded to 32 channels to provide support for other applications like ACD