I helped my father-in-law hook this up last week, (we couldn't see how they could install fibre where he needed it without major hassle/major mess) and I have to say I'm impressed with how easy it was to get up and running. One call to Activations and everything was working within about half and hour (data in about 5 mins, phone within half an hour).
D/L speed at 100Mb/s, U/L speed at 46Mb/s - very nice.
However, when making local calls, to other users on Spark Fibre, the ringback tone generated is like the American cadence (long ring, pause, long ring, pause, etc) and a very high tone. Doesn't do it for calls to mobiles, to 'normal' copper landline local numbers, or to 0800 services. I haven't been able to test every variation of call type, but have confirmed the 'wrong' cadence/tone to two separate Spark Fibre users (who both have landline running over the fibre, not as a separate copper connection).
I have Spark investigating, but had to stop last night when I couldn't connect a phone directly to the modem (long story, but RJ11 cable that came with the modem has been chopped to feed back into his house wiring to give dial tone to all jackpoints. And yes, I have removed the old line from the exchange so no 'double dial tone' (and the old ADSL filters).
I tried to explain that it was simply not possible for bad wiring in the house (the reason they need to test with a phone connected directly to the modem) to cause a change in tone and cadence for only one type of call, but I understand they need to follow the fault finding script before escalating to the next level of support. Fair enough.
I'm out of my depth with signalling over this new platform, but I'm guessing it's generated by the equivalent of tone and cadence tables in the modem itself, and not generated in the Spark network? If so, this probably affects all of the modems using the Spark Wireless Broadband service. If anyone else is running on this service, could they make a local call to another user who is on Spark Fibre (and who has their phone via the modem, not via the copper landline) and see if they get the high pitched, US type ringback? I'd be interested to know if this is network-wide.
Just posting this as a 'heads up' in case anyone else comes across this odd phenonenom.