I was referring to the mobile networks able to do the broadcast and questioning why they couldn't of done a number routing for their network to rout all emergency calls to the alternative number. Which for their customer permutations of use, would be far more efficient and indeed safer if you factor in the delay in the user having to read an sms in the middle of a crisis that dictated calling the emergency service in the first place.
It wasn't just the emergency number that was borken. The entire KPN telephony network was having issues. The alternative number could not be reached from phones using the KPN network, so having emergency calls on those phones redirect to the alternative wouldn't help much. Presumably the other networks didn't put routing into place since that'd be a rather large configuration change on short notice to a safety critical system.
Again - the point I was making was.
IF mobile networks were sending out a cell broadcast of an alternative number to use upon `their` networks.
THEN why didn't they just do a routing change upon `their` networks.
`their` networks were working - hence they was able to send out a network broadcast. They equally sent a new emergency number that was not upon KPN and as such worked.
As for large network configuration changes - pish, it really isn't that hard and would literally be a simple update upon their network only that they could just as easily change back. Not talking a global change update, just a per network (mobile) that was working (or the ones that were and able to push out a cell notification).