Cisco Cisco IP Contact Center Release 4.6.1 Technical References

Page of 55
Overview 
 
1.4.  Virtual VRU Scripts 
In the absence of an attached VRU, the Aastra PointSpan PBX can act as a 
VRU and run Virtual VRU scripts via ICM routing scripts. A Virtual VRU 
script is a configured Application Pilot and CallGuide on the Aastra 
switch. These Application Pilots offer call treatment to the caller. 
Virtual VRU Scripts do offer basic call treatment and queuing 
functionality. If more extensive call treatment is required, a network VRU 
should be used.