fix for MODENDP-25 from Bret McDanel. 1 byte makes all the difference

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5721 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_alsa/mod_alsa.c

@@ -1487,7 +1487,7 @@ static switch_status_t place_call(char **argv, int argc, switch_stream_handle_t
 			tech_pvt->sample_rate = atoi(argv[4]);
 		}
 
-		if (!switch_strlen_zero(argv[4])) {
+		if (!switch_strlen_zero(argv[5])) {
 			tech_pvt->codec_ms = atoi(argv[5]);
 		}