Mae gan Gymru nodweddion topograffeg unigryw a dwysedd poblogaeth sy'n creu her i gwmnïau symudol wrth ddefnyddio'r seilwaith telathrebu symudol. O ganlyniad i hynny mae angen llawer mwy o seilwaith i gynnwys yr holl ardaloedd o gymharu ag ardaloedd eraill Prydain.
Wales has particular characteristics in terms of topography and population density which pose challenges for mobile operators when deploying mobile infrastructure. As a result significantly more infrastructure is needed to provide coverage than other areas of the UK.