"which first answered. All other calls placed by the Dial app will be hung up\n"
"If a timeout is not specified, the Dial application will wait indefinitely\n"
"until either one of the called channels answers, the user hangs up, or all\n"
-"channels return busy or error. In general, the dialler will return 0 if it\n"
+"channels return busy or error. In general, the dialer will return 0 if it\n"
"was unable to place the call, or the timeout expired. However, if all\n"
"channels were busy, and there exists an extension with priority n+101 (where\n"
-"n is the priority of the dialler instance), then it will be the next\n"
+"n is the priority of the dialer instance), then it will be the next\n"
"executed extension (this allows you to setup different behavior on busy from\n"
"no-answer).\n"
" This application returns -1 if the originating channel hangs up, or if the\n"