For the past 8 months I been an extremely satisfied AAISP customer. I have FTTC with a copper pair and I use AAISP VOIP. My connection has been rock solid for over 100 days; with a low error rate and no sign of congestion. That said, I confess that having been a Zen customer previously, I am tempted by Zen's latest discounted offer which includes an OR-approved Fritz!Box, and unlimited usage with a saving of £10 per month.
My questions are this: A. how easy is it to migrate BB with a copper pair rather than a dedicated phone line (I know that AAISP allocate a notional telephone number to this line which I assume is for migration purposes), and B, if I migrate away, can I leave my VOIP connection with AAISP?