T-Mobile's parent company Deutsche Telekom in new details surrounding its roaming deal with AT&T has suggested it may get much more coverage than today. A seven-year pact with the carrier will give it not just licenses for Advanced Wireless Spectrum bands (usually 1,700MHz) in 128 markets but should also let T-Mobile use AT&T's existing 3G network. The step would give it access to the same 850MHz and 1,900MHz bands and theoretically allow iPhones or other devices to connect freely without or alongside T-Mobile's regular AWS bands.