Viom Networks (formerly WTTIL-Quippo) is soon likely to file a draft red herring prospectus (DRHP) for its $1.5 billion IPO in the first quarter of 2011. The company, a joint venture between Tata Teleservices and Quippo Telecom, has shortlisted Citibank, Credit Suisse, Goldman Sachs, Morgan Stanley and IDFC Capital for the issue.