The only short code features that should be used in a Least Cost Route short code are: Dial, Dial3K1, Dial56K, Dial64K, DialEmergency, DialSpeech, DialV110, DialV120, DialVideo and Busy.
The ; character and [ ] characters cannot be used.
Short codes can be added and edited using the Add, Remove and Edit buttons. Alternatively you can right-click on the list of existing short code to add and edit short codes.