Sistema Shyam TeleServices (SSTL) is considering tying up with another operator, say company officials. While SSTL would focus more on data services, its partner?s mainstay would be voice.

In so far, the company has invested $1.5 billion in setting up infrastructure for its operations. SSTL now wants to focus more on data, deeming it more profitable.

Company officials add that the partnership would take place in early 2012 and would include a financial aspect as well.