What is the function of TEHO in a path selection strategy?
A.
Allows users to place an intersite call by dialing a site code.
B.
Uses the WAN link for call routing to avoid PSTN charges.
C.
Uses the WAN link for call routing to avoid PSTN charges; in addition, the PSTN breakout
should be as close as possible to the final PSTN destination.
D.
Defines each site with a unique site code.