A work-at-home telecommunication service is provided in response to receiving, from a calling party, a service-specific vertical feature code and a dialed number to initiate a call. The call is suspended and a query is sent to a service control point after receiving the vertical feature code and the...http://www.google.de/patents/US7170983?utm_source=gb-gplus-sharePatent US7170983 - Method and system for providing a work-at-home telecommunication service