diff --git a/grc/decoding/gsm_tch_f_decoder.block.yml b/grc/decoding/gsm_tch_f_decoder.block.yml
new file mode 100644
index 0000000..1205448
--- /dev/null
+++ b/grc/decoding/gsm_tch_f_decoder.block.yml
@@ -0,0 +1,41 @@
+# auto-generated by grc.converter
+
+id: gsm_tch_f_decoder
+label: TCH/F decoder
+
+parameters:
+-   id: mode
+    label: TCH coding mode
+    dtype: enum
+    options: [grgsm.TCH_FS, grgsm.TCH_EFR, grgsm.TCH_AFS12_2, grgsm.TCH_AFS10_2, grgsm.TCH_AFS7_95,
+        grgsm.TCH_AFS7_4, grgsm.TCH_AFS6_7, grgsm.TCH_AFS5_9, grgsm.TCH_AFS5_15, grgsm.TCH_AFS4_75]
+    option_labels: [GSM-FR, GSM-EFR, GSM-AMR 12.2, GSM-AMR 10.2, GSM-AMR 7.95, GSM-AMR
+            7.4, GSM-AMR 6.7, GSM-AMR 5.9, GSM-AMR 5.15, GSM-AMR 4.75]
+-   id: boundary_check
+    label: Voice boundary detection
+    dtype: bool
+    default: 'False'
+    options: ['False', 'True']
+
+inputs:
+-   domain: message
+    id: bursts
+
+outputs:
+-   domain: message
+    id: msgs
+    optional: true
+-   domain: message
+    id: voice
+    optional: true
+
+templates:
+    imports: import grgsm
+    make: grgsm.tch_f_decoder(${mode}, ${boundary_check})
+
+documentation: "If \"Voice boundary detection\" is enabled, then only bursts are decoded\
+    \ as voice where\n\n- the framenumber is greater then the framenumber of a received\
+    \ \"Connect\" or \"Connect Acknowlegde\" message, and \n- the framenumber is less\
+    \ then the framenumber of a \"Release\" message"
+
+file_format: 1