I find it difficult to comprehend the notion of 'trial subdivisions' especially given these trials have been in place for 4 years.
From my understanding, and not from the WX perspective, but from Chorus's - Broadband Over Fibre (BOF) has been in trial mode for 4 years and at its inception WorldxChange (WX) was the only service provider to create and market a product to utilise this service. The reason it has been in trial so long - and possibly why no one else has come on board - has been that UFB has been on the horizon and everyone has been waiting for this.
WorldxChange remains the only service provider with a developed product to make use of BOF, however there are NO barriers to other providers developing their own products to utilise Chorus's service. It is still unclear the relationship between the governments UFB and existing BOF, but my contact advises that there will no doubt be clarification on the expectations on both services as time progresses.
BOF and UFB - almost like VHS and BETA