How do I set the modem init string?

OpenTV's flagship product is OpenTV Core a widely deployed digital television middleware. OpenTV Core software technology contains a hardware abstraction layer to enable hardware independence, TV libraries, a selection of application execution environments, and support for Personal Video Recorders (PVRs) to create a digital television environment for set-top box. TV libraries include support for rich graphics and High Definition, network communication from dial-up to broadband IP (via DOCSIS, DSL, ethernet or fiber), manipulation of digital audio and video streams (DVB as well as other standards and proprietary formats), and support for authentication and encryption using CA/DRM systems. OpenTV Core supports a number of application execution environments (AEE) including a 'C' virtual machine, an HTML Browser, a Flash® presentation environment and an MHP-compliant Java™ virtual machine. The 'C' virtual machine is an execution environment that supports the OpenTV Software Developer's Kit (SDK) APIs, which allows content providers to create television-centric applications in C-code using development tools from OpenTV or third-party vendors.