Hello Denis,

On 02/22/2012 03:33 PM, Denis Kenzior wrote:
> This would cause us to re-query everything, which is a bit wasteful.
> Also, you have to handle the same action that might occur during
> supplementary services path, e.g. the user might deactivate / erase a
> conditional service there (see cf_ss_control and
> cf_ss_control_callback).  The DisableAll path also needs to be handled
> properly.
>
> Also, there is another path you need to take under consideration and
> that is the supplementary service interrogation path.  That one can
> update conditional settings erroneously if CFU is active.  See
> ss_set_query_cf_callback.
>
> We might need to track CFU and conditional caches separately to make
> things easier.  Let me know if you have any questions.  CallForwarding
> was one of the earliest implemented interfaces and turned out to be
> quite a bit more complicated than originally thought ;)

Thanks for the help and ideas here. Let me check the supplementary services path 
and how to deal with the caching. I will prepare patches to address these.

Regards,
Oleg
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