Why separate threads for incall vs outcall for same provider?

[transatlantic]

Did I search for "seaparate threads" and looked at FAQ but couldn't find an answer. Why two threads (outcall/incall) for same provider?

 

[BookerL]

Did I search for "seaparate threads" and looked at FAQ but couldn't find an answer. Why two threads (outcall/incall) for same provider?

http://merb.cc/vbulletin/showthread...o-one-thread&highlight=SEPERATE+THREAD+INCALL

Cheers



Booker