Lists the stack trace where maxdepth specifies the maximum depth of the stack you want to display. maxdepth has a default value of 20 and a maximum value of 500. Other options let you to choose whether or not to display the corresponding procedure's parameters (par), source position (pos), or local variables (local). The default choices are display parameter, display source position, and do not display local variables (par pos nolocal).
In GUI-mode, this information can be displayed in its own window with the callsview command. See callsview.