ast_log(LOG_WARNING, "DTMFCID timed out waiting for ring. "
"Exiting simple switch\n");
ast_hangup(chan);
- return NULL;
+ goto quit;
}
f = ast_read(chan);
+ if (!f) {
+ /* Hangup received waiting for DTMFCID. Exiting simple switch. */
+ ast_hangup(chan);
+ goto quit;
+ }
if (f->frametype == AST_FRAME_DTMF) {
dtmfbuf[k++] = f->subclass.integer;
ast_debug(1, "CID got digit '%c'\n", f->subclass.integer);