Can't use extension 0001

[SanderPBX]

I can see posts from others that allows the use of a leading 0 for an extension, but all i get is
"

• Cannot use this number, try another one.

"

I started with imports with a csv file with leading 0 that worked, but not from the webinterface, so i can't add ringgroups and call queues starting with 0?

Anyone??

 

[AWS2P]

Yes , since V18 SP6 it's no more available to create extensions 0xxx, if they were existing before SP6 they will continue to work but no way to create a new one