--- channels/chan_sip.c (revisión: 230420)
+++ channels/chan_sip.c (copia de trabajo)
@@ -4373,6 +4373,7 @@
                        return r;
        }

+       (*start)++;
        return "";
 }

@@ -5105,6 +5106,8 @@

        /* Check a non-newline-terminated last line */
        if (!ast_strlen_zero(req->line[f])) {
+               if (sipdebug && option_debug > 3)
+                       ast_log(LOG_DEBUG, "Line: %s (%d)\n", req->line[f], (int) strlen(req->line[f]));
                req->lines++;
        }