Feature request: Add callback, callthrough about csipsimple HOT 1 CLOSED

Only sip providers can give you this kind of features.
CSipSimple is designed to be extensible by sip providers (some are already 
interested).
I hope that sip providers will invest in doing their own app based on 
CSipSimple core
and that provides callback/callthrough and webcallback but also allow to 
directly be
plugged into their payment gateway or to monitor the amount left on account for
example...

So this request can't be fixed by CSipSimple : the aim of CSipSimple is just to 
allow
to support the SIP protocol and not any proprietary protocol linked to a 
specific
provider.
But I designed it to allow any providers to build on the top of CSipSimple in 
order
to give a better user experience, providing their extended protocol if they 
want. 

For now I'm focused in making it usable for everyone regardless their sip 
provider
(and there is still a lot of work ;) ). But when it will be more stable I will
produce some "theme" application and custom applications for specific providers.