go with any fix line like wlink or adsl and ncell 3g as backup purpose,
3g is available most of time but on long load shedding only crap 2g available, ncell cost 4500/- for 20gb for unlimited time period.
you can even buy broadlink wifi connection if its available around your area for extra backup or dial up too, its slow but i have used it some time ago for logmein and its not very bad.