diff --git a/include/osmocom/msc/sdp_msg.h b/include/osmocom/msc/sdp_msg.h
index 7ac6036..44a8a30 100644
--- a/include/osmocom/msc/sdp_msg.h
+++ b/include/osmocom/msc/sdp_msg.h
@@ -52,17 +52,17 @@
 				   bool translate_payload_type_numbers);
 void sdp_audio_codecs_select(struct sdp_audio_codecs *ac, struct sdp_audio_codec *codec);
 
-int sdp_msg_to_str(char *dst, size_t dst_size, const struct sdp_msg *sdp);
-int sdp_msg_from_str(struct sdp_msg *sdp, const char *src);
+int sdp_msg_to_sdp_str_buf(char *dst, size_t dst_size, const struct sdp_msg *sdp);
+int sdp_msg_from_sdp_str(struct sdp_msg *sdp, const char *src);
 
-int sdp_audio_codec_name_buf(char *buf, size_t buflen, const struct sdp_audio_codec *codec);
-char *sdp_audio_codec_name_c(void *ctx, const struct sdp_audio_codec *codec);
-const char *sdp_audio_codec_name(const struct sdp_audio_codec *codec);
+int sdp_audio_codec_to_str_buf(char *buf, size_t buflen, const struct sdp_audio_codec *codec);
+char *sdp_audio_codec_to_str_c(void *ctx, const struct sdp_audio_codec *codec);
+const char *sdp_audio_codec_to_str(const struct sdp_audio_codec *codec);
 
-int sdp_audio_codecs_name_buf(char *buf, size_t buflen, const struct sdp_audio_codecs *ac);
-char *sdp_audio_codecs_name_c(void *ctx, const struct sdp_audio_codecs *ac);
-const char *sdp_audio_codecs_name(const struct sdp_audio_codecs *ac);
+int sdp_audio_codecs_to_str_buf(char *buf, size_t buflen, const struct sdp_audio_codecs *ac);
+char *sdp_audio_codecs_to_str_c(void *ctx, const struct sdp_audio_codecs *ac);
+const char *sdp_audio_codecs_to_str(const struct sdp_audio_codecs *ac);
 
-int sdp_msg_name_buf(char *buf, size_t buflen, const struct sdp_msg *sdp);
-char *sdp_msg_name_c(void *ctx, const struct sdp_msg *sdp);
-const char *sdp_msg_name(const struct sdp_msg *sdp);
+int sdp_msg_to_str_buf(char *buf, size_t buflen, const struct sdp_msg *sdp);
+char *sdp_msg_to_str_c(void *ctx, const struct sdp_msg *sdp);
+const char *sdp_msg_to_str(const struct sdp_msg *sdp);
diff --git a/src/libmsc/sdp_msg.c b/src/libmsc/sdp_msg.c
index 6170e8e..6f30113 100644
--- a/src/libmsc/sdp_msg.c
+++ b/src/libmsc/sdp_msg.c
@@ -163,7 +163,7 @@
 }
 
 /* Convert struct sdp_msg to the actual SDP protocol representation */
-int sdp_msg_to_str(char *dst, size_t dst_size, const struct sdp_msg *sdp)
+int sdp_msg_to_sdp_str_buf(char *dst, size_t dst_size, const struct sdp_msg *sdp)
 {
 	const struct sdp_audio_codec *codec;
 	struct osmo_strbuf sb = { .buf = dst, .len = dst_size };
@@ -383,7 +383,7 @@
 }
 
 /* Parse SDP string into struct sdp_msg. Return 0 on success, negative on error. */
-int sdp_msg_from_str(struct sdp_msg *sdp, const char *src)
+int sdp_msg_from_sdp_str(struct sdp_msg *sdp, const char *src)
 {
 	const char *pos;
 	*sdp = (struct sdp_msg){};
@@ -505,7 +505,7 @@
 
 /* Short single-line representation of an SDP audio codec, convenient for logging.
  * Like "AMR/8000:octet-align=1#122" */
-int sdp_audio_codec_name_buf(char *buf, size_t buflen, const struct sdp_audio_codec *codec)
+int sdp_audio_codec_to_str_buf(char *buf, size_t buflen, const struct sdp_audio_codec *codec)
 {
 	struct osmo_strbuf sb = { .buf = buf, .len = buflen };
 	OSMO_STRBUF_PRINTF(sb, "%s", codec->subtype_name);
@@ -514,18 +514,18 @@
 	return sb.chars_needed;
 }
 
-char *sdp_audio_codec_name_c(void *ctx, const struct sdp_audio_codec *codec)
+char *sdp_audio_codec_to_str_c(void *ctx, const struct sdp_audio_codec *codec)
 {
-	OSMO_NAME_C_IMPL(ctx, 32, "sdp_audio_codec_name_c-ERROR", sdp_audio_codec_name_buf, codec)
+	OSMO_NAME_C_IMPL(ctx, 32, "sdp_audio_codec_to_str_c-ERROR", sdp_audio_codec_to_str_buf, codec)
 }
 
-const char *sdp_audio_codec_name(const struct sdp_audio_codec *codec)
+const char *sdp_audio_codec_to_str(const struct sdp_audio_codec *codec)
 {
-	return sdp_audio_codec_name_c(OTC_SELECT, codec);
+	return sdp_audio_codec_to_str_c(OTC_SELECT, codec);
 }
 
 /* Short single-line representation of a list of SDP audio codecs, convenient for logging */
-int sdp_audio_codecs_name_buf(char *buf, size_t buflen, const struct sdp_audio_codecs *ac)
+int sdp_audio_codecs_to_str_buf(char *buf, size_t buflen, const struct sdp_audio_codecs *ac)
 {
 	struct osmo_strbuf sb = { .buf = buf, .len = buflen };
 	const struct sdp_audio_codec *codec;
@@ -535,23 +535,23 @@
 		bool first = (codec == ac->codec);
 		if (!first)
 			OSMO_STRBUF_PRINTF(sb, ",");
-		OSMO_STRBUF_APPEND(sb, sdp_audio_codec_name_buf, codec);
+		OSMO_STRBUF_APPEND(sb, sdp_audio_codec_to_str_buf, codec);
 	}
 	return sb.chars_needed;
 }
 
-char *sdp_audio_codecs_name_c(void *ctx, const struct sdp_audio_codecs *ac)
+char *sdp_audio_codecs_to_str_c(void *ctx, const struct sdp_audio_codecs *ac)
 {
-	OSMO_NAME_C_IMPL(ctx, 128, "sdp_audio_codecs_name_c-ERROR", sdp_audio_codecs_name_buf, ac)
+	OSMO_NAME_C_IMPL(ctx, 128, "sdp_audio_codecs_to_str_c-ERROR", sdp_audio_codecs_to_str_buf, ac)
 }
 
-const char *sdp_audio_codecs_name(const struct sdp_audio_codecs *ac)
+const char *sdp_audio_codecs_to_str(const struct sdp_audio_codecs *ac)
 {
-	return sdp_audio_codecs_name_c(OTC_SELECT, ac);
+	return sdp_audio_codecs_to_str_c(OTC_SELECT, ac);
 }
 
 /* Short single-line representation of an SDP message, convenient for logging */
-int sdp_msg_name_buf(char *buf, size_t buflen, const struct sdp_msg *sdp)
+int sdp_msg_to_str_buf(char *buf, size_t buflen, const struct sdp_msg *sdp)
 {
 	struct osmo_strbuf sb = { .buf = buf, .len = buflen };
 	if (!sdp) {
@@ -561,17 +561,17 @@
 
 	OSMO_STRBUF_PRINTF(sb, OSMO_SOCKADDR_STR_FMT, OSMO_SOCKADDR_STR_FMT_ARGS(&sdp->rtp));
 	OSMO_STRBUF_PRINTF(sb, "{");
-	OSMO_STRBUF_APPEND(sb, sdp_audio_codecs_name_buf, &sdp->audio_codecs);
+	OSMO_STRBUF_APPEND(sb, sdp_audio_codecs_to_str_buf, &sdp->audio_codecs);
 	OSMO_STRBUF_PRINTF(sb, "}");
 	return sb.chars_needed;
 }
 
-char *sdp_msg_name_c(void *ctx, const struct sdp_msg *sdp)
+char *sdp_msg_to_str_c(void *ctx, const struct sdp_msg *sdp)
 {
-	OSMO_NAME_C_IMPL(ctx, 128, "sdp_msg_name_c-ERROR", sdp_msg_name_buf, sdp)
+	OSMO_NAME_C_IMPL(ctx, 128, "sdp_msg_to_str_c-ERROR", sdp_msg_to_str_buf, sdp)
 }
 
-const char *sdp_msg_name(const struct sdp_msg *sdp)
+const char *sdp_msg_to_str(const struct sdp_msg *sdp)
 {
-	return sdp_msg_name_c(OTC_SELECT, sdp);
+	return sdp_msg_to_str_c(OTC_SELECT, sdp);
 }
diff --git a/tests/sdp_msg/sdp_msg_test.c b/tests/sdp_msg/sdp_msg_test.c
index b97127a..e891953 100644
--- a/tests/sdp_msg/sdp_msg_test.c
+++ b/tests/sdp_msg/sdp_msg_test.c
@@ -134,10 +134,10 @@
 		printf("\n[%d]\n", i);
 		dump_sdp(t->sdp_input, "sdp input: ");
 
-		sdp_msg_from_str(&sdp, t->sdp_input);
-		sdp_msg_to_str(str, sizeof(str), &sdp);
+		sdp_msg_from_sdp_str(&sdp, t->sdp_input);
+		sdp_msg_to_sdp_str_buf(str, sizeof(str), &sdp);
 
-		dump_sdp(str, "sdp_msg_to_str: ");
+		dump_sdp(str, "sdp_msg_to_sdp_str_buf: ");
 		if (strcmp(str, t->expect_sdp_str)) {
 			int j;
 			ok = false;
@@ -344,7 +344,7 @@
 const char *sdp_msg_logstr(const struct sdp_msg *sdp)
 {
 	static char buf[1024];
-	sdp_msg_to_str(buf, sizeof(buf), sdp);
+	sdp_msg_to_sdp_str_buf(buf, sizeof(buf), sdp);
 	return buf;
 }
 
@@ -365,20 +365,20 @@
 		dump_sdp(t->sdp_a, "SDP A: ");
 		dump_sdp(t->sdp_b, " SDP B: ");
 
-		rc = sdp_msg_from_str(&sdp_a, t->sdp_a);
+		rc = sdp_msg_from_sdp_str(&sdp_a, t->sdp_a);
 		if (rc) {
 			printf("ERROR parsing SDP A: %d\n", rc);
 			break;
 		}
 		dump_sdp(sdp_msg_logstr(&sdp_a), "parsed SDP A: ");
-		rc = sdp_msg_from_str(&sdp_b, t->sdp_b);
+		rc = sdp_msg_from_sdp_str(&sdp_b, t->sdp_b);
 		if (rc) {
 			printf("ERROR parsing SDP A: %d\n", rc);
 			break;
 		}
 		dump_sdp(sdp_msg_logstr(&sdp_b), "parsed SDP B: ");
 		sdp_audio_codecs_intersection(&sdp_a.audio_codecs, &sdp_b.audio_codecs, false);
-		sdp_msg_to_str(str, sizeof(str), &sdp_a);
+		sdp_msg_to_sdp_str_buf(str, sizeof(str), &sdp_a);
 
 		dump_sdp(str, "sdp_msg_intersection(a,b): ");
 		if (strcmp(str, t->expect_intersection)) {
@@ -525,20 +525,20 @@
 		struct sdp_audio_codec *codec;
 		char buf[1024];
 		printf("\n[%d]\n", i);
-		rc = sdp_msg_from_str(&sdp, t->sdp);
+		rc = sdp_msg_from_sdp_str(&sdp, t->sdp);
 		if (rc) {
 			printf("ERROR parsing SDP: %d\n", rc);
 			break;
 		}
-		printf("SDP: %s\n", sdp_audio_codecs_name(&sdp.audio_codecs));
+		printf("SDP: %s\n", sdp_audio_codecs_to_str(&sdp.audio_codecs));
 		codec = sdp_audio_codec_by_payload_type(&sdp.audio_codecs, t->select_payload_type, false);
 		OSMO_ASSERT(codec);
-		printf("Select: %s\n", sdp_audio_codec_name(codec));
+		printf("Select: %s\n", sdp_audio_codec_to_str(codec));
 
 		sdp_audio_codecs_select(&sdp.audio_codecs, codec);
 
-		printf("SDP: %s\n", sdp_audio_codecs_name(&sdp.audio_codecs));
-		sdp_msg_to_str(buf, sizeof(buf), &sdp);
+		printf("SDP: %s\n", sdp_audio_codecs_to_str(&sdp.audio_codecs));
+		sdp_msg_to_sdp_str_buf(buf, sizeof(buf), &sdp);
 
 		if (strcmp(buf, t->expect_sdp ? : t->sdp)) {
 			int j;
diff --git a/tests/sdp_msg/sdp_msg_test.ok b/tests/sdp_msg/sdp_msg_test.ok
index a7a3d51..0b11c51 100644
--- a/tests/sdp_msg/sdp_msg_test.ok
+++ b/tests/sdp_msg/sdp_msg_test.ok
@@ -23,25 +23,25 @@
 sdp input: a=fmtp:101 0-15\r\n
 sdp input: a=ptime:20\r\n
 sdp input: a=sendrecv\r\n
-sdp_msg_to_str: v=0\r\n
-sdp_msg_to_str: o=OsmoMSC 0 0 IN IP4 192.168.11.121\r\n
-sdp_msg_to_str: s=GSM Call\r\n
-sdp_msg_to_str: c=IN IP4 192.168.11.121\r\n
-sdp_msg_to_str: t=0 0\r\n
-sdp_msg_to_str: m=audio 10020 RTP/AVP 18 0 2 4 8 96 97 98 100 101\r\n
-sdp_msg_to_str: a=rtpmap:18 G729/8000\r\n
-sdp_msg_to_str: a=rtpmap:0 PCMU/8000\r\n
-sdp_msg_to_str: a=rtpmap:2 G726-32/8000\r\n
-sdp_msg_to_str: a=rtpmap:4 G723/8000\r\n
-sdp_msg_to_str: a=rtpmap:8 PCMA/8000\r\n
-sdp_msg_to_str: a=rtpmap:96 G726-40/8000\r\n
-sdp_msg_to_str: a=rtpmap:97 G726-24/8000\r\n
-sdp_msg_to_str: a=rtpmap:98 G726-16/8000\r\n
-sdp_msg_to_str: a=rtpmap:100 NSE/8000\r\n
-sdp_msg_to_str: a=fmtp:100 192-193\r\n
-sdp_msg_to_str: a=rtpmap:101 telephone-event/8000\r\n
-sdp_msg_to_str: a=fmtp:101 0-15\r\n
-sdp_msg_to_str: a=ptime:20\r\n
+sdp_msg_to_sdp_str_buf: v=0\r\n
+sdp_msg_to_sdp_str_buf: o=OsmoMSC 0 0 IN IP4 192.168.11.121\r\n
+sdp_msg_to_sdp_str_buf: s=GSM Call\r\n
+sdp_msg_to_sdp_str_buf: c=IN IP4 192.168.11.121\r\n
+sdp_msg_to_sdp_str_buf: t=0 0\r\n
+sdp_msg_to_sdp_str_buf: m=audio 10020 RTP/AVP 18 0 2 4 8 96 97 98 100 101\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:18 G729/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:0 PCMU/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:2 G726-32/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:4 G723/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:8 PCMA/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:96 G726-40/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:97 G726-24/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:98 G726-16/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:100 NSE/8000\r\n
+sdp_msg_to_sdp_str_buf: a=fmtp:100 192-193\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:101 telephone-event/8000\r\n
+sdp_msg_to_sdp_str_buf: a=fmtp:101 0-15\r\n
+sdp_msg_to_sdp_str_buf: a=ptime:20\r\n
 [0] ok
 
 [1]
@@ -55,15 +55,15 @@
 sdp input: a=fmtp:98 octet-align=1; mode-set=4\r\n
 sdp input: a=ptime:20\r\n
 sdp input: a=rtcp:16399 IN IP4 192.168.11.151\r\n
-sdp_msg_to_str: v=0\r\n
-sdp_msg_to_str: o=OsmoMSC 0 0 IN IP4 192.168.11.151\r\n
-sdp_msg_to_str: s=GSM Call\r\n
-sdp_msg_to_str: c=IN IP4 192.168.11.151\r\n
-sdp_msg_to_str: t=0 0\r\n
-sdp_msg_to_str: m=audio 16398 RTP/AVP 98\r\n
-sdp_msg_to_str: a=rtpmap:98 AMR/8000\r\n
-sdp_msg_to_str: a=fmtp:98 octet-align=1; mode-set=4\r\n
-sdp_msg_to_str: a=ptime:20\r\n
+sdp_msg_to_sdp_str_buf: v=0\r\n
+sdp_msg_to_sdp_str_buf: o=OsmoMSC 0 0 IN IP4 192.168.11.151\r\n
+sdp_msg_to_sdp_str_buf: s=GSM Call\r\n
+sdp_msg_to_sdp_str_buf: c=IN IP4 192.168.11.151\r\n
+sdp_msg_to_sdp_str_buf: t=0 0\r\n
+sdp_msg_to_sdp_str_buf: m=audio 16398 RTP/AVP 98\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:98 AMR/8000\r\n
+sdp_msg_to_sdp_str_buf: a=fmtp:98 octet-align=1; mode-set=4\r\n
+sdp_msg_to_sdp_str_buf: a=ptime:20\r\n
 [1] ok
 
 [2]
@@ -82,19 +82,19 @@
 sdp input: a=sendrecv\r\n
 sdp input: a=rtcp:30437\r\n
 sdp input: a=ptime:20\r\n
-sdp_msg_to_str: v=0\r\n
-sdp_msg_to_str: o=OsmoMSC 0 0 IN IP4 192.168.11.140\r\n
-sdp_msg_to_str: s=GSM Call\r\n
-sdp_msg_to_str: c=IN IP4 192.168.11.140\r\n
-sdp_msg_to_str: t=0 0\r\n
-sdp_msg_to_str: m=audio 30436 RTP/AVP 18 0 4 8 101\r\n
-sdp_msg_to_str: a=rtpmap:18 G729/8000\r\n
-sdp_msg_to_str: a=rtpmap:0 PCMU/8000\r\n
-sdp_msg_to_str: a=rtpmap:4 G723/8000\r\n
-sdp_msg_to_str: a=rtpmap:8 PCMA/8000\r\n
-sdp_msg_to_str: a=rtpmap:101 telephone-event/8000\r\n
-sdp_msg_to_str: a=fmtp:101 0-15\r\n
-sdp_msg_to_str: a=ptime:20\r\n
+sdp_msg_to_sdp_str_buf: v=0\r\n
+sdp_msg_to_sdp_str_buf: o=OsmoMSC 0 0 IN IP4 192.168.11.140\r\n
+sdp_msg_to_sdp_str_buf: s=GSM Call\r\n
+sdp_msg_to_sdp_str_buf: c=IN IP4 192.168.11.140\r\n
+sdp_msg_to_sdp_str_buf: t=0 0\r\n
+sdp_msg_to_sdp_str_buf: m=audio 30436 RTP/AVP 18 0 4 8 101\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:18 G729/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:0 PCMU/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:4 G723/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:8 PCMA/8000\r\n
+sdp_msg_to_sdp_str_buf: a=rtpmap:101 telephone-event/8000\r\n
+sdp_msg_to_sdp_str_buf: a=fmtp:101 0-15\r\n
+sdp_msg_to_sdp_str_buf: a=ptime:20\r\n
 [2] ok