diff --git a/src/gsm/gsm0808_utils.c b/src/gsm/gsm0808_utils.c
index 8ef8e24..2c659bb 100644
--- a/src/gsm/gsm0808_utils.c
+++ b/src/gsm/gsm0808_utils.c
@@ -1273,4 +1273,13 @@
 #undef APPEND_STR
 #undef APPEND_CELL_ID_U
 
+const char *gsm0808_channel_type_name(const struct gsm0808_channel_type *ct)
+{
+	static char buf[128];
+	snprintf(buf, sizeof(buf), "ch_indctr=0x%x ch_rate_type=0x%x perm_spch=%s",
+		 ct->ch_indctr, ct->ch_rate_type,
+		 osmo_hexdump(ct->perm_spch, ct->perm_spch_len));
+	return buf;
+}
+
 /*! @} */
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index f04fd58..8c64020 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -188,6 +188,7 @@
 gsm0808_chan_type_to_speech_codec;
 gsm0808_speech_codec_from_chan_type;
 gsm0808_speech_codec_type_names;
+gsm0808_channel_type_name;
 
 gsm0858_rsl_ul_meas_enc;