diff --git a/tests/gsm0808/gsm0808_test.ok b/tests/gsm0808/gsm0808_test.ok
index 6cd7982..dc1deba 100644
--- a/tests/gsm0808/gsm0808_test.ok
+++ b/tests/gsm0808/gsm0808_test.ok
@@ -74,4 +74,229 @@
 test_gsm0808_enc_dec_cell_id_ci: encoded: 05 03 02 04 23 (rc = 5)
 test_gsm0808_enc_dec_cell_id_lac_and_ci: encoded: 05 05 01 04 23 02 35 (rc = 7)
 test_gsm0808_enc_dec_cell_id_global: encoded: 05 08 00 21 63 54 23 42 04 23 (rc = 10)
+Testing gsm0808_sc_cfg_from_gsm48_mr_cfg():
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 0000 = 0b0000000000000000
+Result (hr):
+ S15-S0 = 0000 = 0b0000000000000000
+
+Input:
+ m4_75= 1   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 5703 = 0b0101011100000011
+Result (hr):
+ S15-S0 = 0703 = 0b0000011100000011
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 1   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 0000 = 0b0000000000000000
+Result (hr):
+ S15-S0 = 0000 = 0b0000000000000000
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 1   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 5706 = 0b0101011100000110
+Result (hr):
+ S15-S0 = 0706 = 0b0000011100000110
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 1   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 1608 = 0b0001011000001000
+Result (hr):
+ S15-S0 = 0608 = 0b0000011000001000
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 1   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 0412 = 0b0000010000010010
+Result (hr):
+ S15-S0 = 0412 = 0b0000010000010010
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 1
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 4020 = 0b0100000000100000
+Result (hr):
+ S15-S0 = 0020 = 0b0000000000100000
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 1
+ m12_2= 0
+Result (fr):
+ S15-S0 = 1040 = 0b0001000001000000
+Result (hr):
+ S15-S0 = 0000 = 0b0000000000000000
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 1
+Result (fr):
+ S15-S0 = 4082 = 0b0100000010000010
+Result (hr):
+ S15-S0 = 0002 = 0b0000000000000010
+
+Input:
+ m4_75= 1   smod=  0
+ m5_15= 1   spare= 0
+ m5_90= 1   icmi=  0
+ m6_70= 1   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 570f = 0b0101011100001111
+Result (hr):
+ S15-S0 = 070f = 0b0000011100001111
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 1   ver=   0
+ m7_95= 1
+ m10_2= 1
+ m12_2= 1
+Result (fr):
+ S15-S0 = 54f2 = 0b0101010011110010
+Result (hr):
+ S15-S0 = 0432 = 0b0000010000110010
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 1   icmi=  0
+ m6_70= 1   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 0
+ m10_2= 1
+ m12_2= 1
+Result (fr):
+ S15-S0 = 57ce = 0b0101011111001110
+Result (hr):
+ S15-S0 = 070e = 0b0000011100001110
+
+Input:
+ m4_75= 1   smod=  0
+ m5_15= 1   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 1   ver=   0
+ m7_95= 1
+ m10_2= 0
+ m12_2= 0
+Result (fr):
+ S15-S0 = 5733 = 0b0101011100110011
+Result (hr):
+ S15-S0 = 0733 = 0b0000011100110011
+
+Input:
+ m4_75= 0   smod=  0
+ m5_15= 1   spare= 0
+ m5_90= 0   icmi=  0
+ m6_70= 1   nscb=  0
+ m7_40= 0   ver=   0
+ m7_95= 1
+ m10_2= 0
+ m12_2= 1
+Result (fr):
+ S15-S0 = 56aa = 0b0101011010101010
+Result (hr):
+ S15-S0 = 062a = 0b0000011000101010
+
+Input:
+ m4_75= 1   smod=  0
+ m5_15= 0   spare= 0
+ m5_90= 1   icmi=  0
+ m6_70= 0   nscb=  0
+ m7_40= 1   ver=   0
+ m7_95= 0
+ m10_2= 1
+ m12_2= 0
+Result (fr):
+ S15-S0 = 5757 = 0b0101011101010111
+Result (hr):
+ S15-S0 = 0717 = 0b0000011100010111
+
+Input:
+ m4_75= 1   smod=  0
+ m5_15= 1   spare= 0
+ m5_90= 1   icmi=  0
+ m6_70= 1   nscb=  0
+ m7_40= 1   ver=   0
+ m7_95= 1
+ m10_2= 1
+ m12_2= 1
+Result (fr):
+ S15-S0 = 57ff = 0b0101011111111111
+Result (hr):
+ S15-S0 = 073f = 0b0000011100111111
+
 Done