Yes, this can be done
NT/TE VWIC-BRI means you have the
capabilities of simulating a network side isdn i.e. presenting the router as an isdn switch to the isdn phone.
configs below.
VIC-2BRI-NT/TE
!
isdn switch-type basic-net3
!
interface bri 0
no ip address
isdn switch-type basic-net3
isdn overlap-receiving
isdn twait-disable
isdn incoming-voice voice
isdn layer1-emulate network
isdn protocol-emulate network