diff --git a/src/mod/codecs/mod_l16/mod_l16.c b/src/mod/codecs/mod_l16/mod_l16.c
index ed510c08da..8f601b6f46 100644
--- a/src/mod/codecs/mod_l16/mod_l16.c
+++ b/src/mod/codecs/mod_l16/mod_l16.c
@@ -197,7 +197,7 @@ static switch_codec_implementation_t raw_16k_120ms_implementation = {
 	/*.ianacode */ 117,
 	/*.iananame */ "L16",
 	/*.fmtp */ NULL,
-	/*.samples_per_second */ 8000,
+	/*.samples_per_second */ 16000,
 	/*.bits_per_second */ 256000,
 	/*.microseconds_per_frame */ 120000,
 	/*.samples_per_frame */ 1920,
diff --git a/src/switch_core_codec.c b/src/switch_core_codec.c
index 3b840a354d..e9d6368d60 100644
--- a/src/switch_core_codec.c
+++ b/src/switch_core_codec.c
@@ -95,6 +95,12 @@ SWITCH_DECLARE(switch_status_t) switch_core_codec_init(switch_codec_t *codec, ch
 
 	memset(codec, 0, sizeof(*codec));
 
+
+	if (channels == 2) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Stereo is not currently supported. please downsample audio source to mono.\n");
+		return SWITCH_STATUS_GENERR;
+	}
+
 	if ((codec_interface = switch_loadable_module_get_codec_interface(codec_name)) == 0) {
 		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "invalid codec %s!\n", codec_name);
 		return SWITCH_STATUS_GENERR;