diff --git a/tests/gsm0808/gsm0808_test.c b/tests/gsm0808/gsm0808_test.c
index ae138be..6faa689 100644
--- a/tests/gsm0808/gsm0808_test.c
+++ b/tests/gsm0808/gsm0808_test.c
@@ -1444,6 +1444,202 @@
 	msgb_free(msg);
 }
 
+static void test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(struct gsm48_multi_rate_conf *cfg)
+{
+	uint16_t s15_s0;
+
+	printf("Input:\n");
+	printf(" m4_75= %u   smod=  %u\n", cfg->m4_75, cfg->smod);
+	printf(" m5_15= %u   spare= %u\n", cfg->m5_15, cfg->spare);
+	printf(" m5_90= %u   icmi=  %u\n", cfg->m5_90, cfg->icmi);
+	printf(" m6_70= %u   nscb=  %u\n", cfg->m6_70, cfg->nscb);
+	printf(" m7_40= %u   ver=   %u\n", cfg->m7_40, cfg->ver);
+	printf(" m7_95= %u\n", cfg->m7_95);
+	printf(" m10_2= %u\n", cfg->m10_2);
+	printf(" m12_2= %u\n", cfg->m12_2);
+
+	s15_s0 = gsm0808_sc_cfg_from_gsm48_mr_cfg(cfg, true);
+	printf("Result (fr):\n");
+	printf(" S15-S0 = %04x = 0b" OSMO_BIN_SPEC OSMO_BIN_SPEC "\n", s15_s0,
+	       OSMO_BIN_PRINT(s15_s0 >> 8), OSMO_BIN_PRINT(s15_s0));
+
+	s15_s0 = gsm0808_sc_cfg_from_gsm48_mr_cfg(cfg, false);
+	printf("Result (hr):\n");
+	printf(" S15-S0 = %04x = 0b" OSMO_BIN_SPEC OSMO_BIN_SPEC "\n", s15_s0,
+	       OSMO_BIN_PRINT(s15_s0 >> 8), OSMO_BIN_PRINT(s15_s0));
+
+	printf("\n");
+}
+
+static void test_gsm0808_sc_cfg_from_gsm48_mr_cfg(void)
+{
+	struct gsm48_multi_rate_conf cfg;
+
+	printf("Testing gsm0808_sc_cfg_from_gsm48_mr_cfg():\n");
+
+	memset(&cfg, 0, sizeof(cfg));
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 1;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 1;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 1;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 1;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 1;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 1;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 1;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 1;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 1;
+	cfg.m5_15 = 1;
+	cfg.m5_90 = 1;
+	cfg.m6_70 = 1;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 1;
+	cfg.m7_95 = 1;
+	cfg.m10_2 = 1;
+	cfg.m12_2 = 1;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 1;
+	cfg.m6_70 = 1;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 1;
+	cfg.m12_2 = 1;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 1;
+	cfg.m5_15 = 1;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 1;
+	cfg.m7_95 = 1;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 0;
+	cfg.m5_15 = 1;
+	cfg.m5_90 = 0;
+	cfg.m6_70 = 1;
+	cfg.m7_40 = 0;
+	cfg.m7_95 = 1;
+	cfg.m10_2 = 0;
+	cfg.m12_2 = 1;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 1;
+	cfg.m5_15 = 0;
+	cfg.m5_90 = 1;
+	cfg.m6_70 = 0;
+	cfg.m7_40 = 1;
+	cfg.m7_95 = 0;
+	cfg.m10_2 = 1;
+	cfg.m12_2 = 0;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+
+	cfg.m4_75 = 1;
+	cfg.m5_15 = 1;
+	cfg.m5_90 = 1;
+	cfg.m6_70 = 1;
+	cfg.m7_40 = 1;
+	cfg.m7_95 = 1;
+	cfg.m10_2 = 1;
+	cfg.m12_2 = 1;
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg_single(&cfg);
+}
+
 int main(int argc, char **argv)
 {
 	printf("Testing generation of GSM0808 messages\n");
@@ -1495,6 +1691,8 @@
 	test_gsm0808_enc_dec_cell_id_lac_and_ci();
 	test_gsm0808_enc_dec_cell_id_global();
 
+	test_gsm0808_sc_cfg_from_gsm48_mr_cfg();
+
 	printf("Done\n");
 	return EXIT_SUCCESS;
 }