Analysts have so far had a good feeling about Obermann, whose strategy for tackling rivals on home soil has been to tighten up the relationship between the company's fixed line unit, T-Com, and its T-Mobile units.
Tackling these problems points to a strategy that delivers an overall reduction in traffic levels, not merely a redistribution of existing traffic levels.
Environment spokesperson for Plaid Cymru Dafydd Elis-Thomas urged the government to consider tackling fuel poverty and transport infrastructure in the climate change strategy.