using Auth code in DECT

[Monrovia]

hi,

how the auth code can be used in a DECT phone?
in my system, all the dect phones have same CSP,(almost all DT412 rest DT292) and in that some 2 or 3 can use auth code and make calls using it, but most of the others cannot. is there some special techniq to use the auth code in DECT?

thanks in advance for your help

 

[Monrovia]

I am sorry, there are two CSP in my system.

problem solved