If NGT is doing good, that means Level3 is doing good too. The Rocky Mountain state of Colorado is seeing boom times for VoIP, which also means that QWEST is feeling some pain, but they have so many distractions that they don’t notice it when they see the level of churn they have to be experiencing.
My guess is some of this VoIP business is second line or vacation home line installations. Why pay a monthly fee for a land line at your chalet in Vail if you can install a VoIP line that you can take with you when the season ends is likely also contributing to the growth.