Dear Sirs,
I have read your project description and would be ready to do the work.
Currently I have Elisa and Telia postpaid numbers but I can purchase Saunalahti (which is part of Elisa also) prepaid card as well and run the test with it also. If needed, I can use three different type of Android devices (~5 year old cheap and small, ~1 year old higher middle range phone and ~1 year old middle range tablet with phone capabilities).
I can run test from Monday to Friday about between 8:30 - 16:00 and can have Skype connection at the same time on PC.
My native language is Finnish and I do speak fluent English.