Had UFB installed by Enable last week (Spark) - everything when well except that the phone line wouldn't work when tested (TEL1 keeps flashing on the Huawei box)

Anyway, the installer said that they need to come back to work outside, (overhead cables?). I opted to have the phone connect directly to the box.

My VFNZ service (Cable) is still active however since the install no one has been able to call the landline number, all they get is an engaged signal. Since this morning I'm no longer able to phone out (no audible signal) but I'm not panicking...yet.

Anyone care to speculate as to what has gone on? I'm thinking there been a stuff up down the cabinet (Distance is 67m). 

Thanks.