diff --git a/example/defaults.conf b/example/defaults.conf
index 61b09fb..5bdf257 100644
--- a/example/defaults.conf
+++ b/example/defaults.conf
@@ -14,6 +14,8 @@
     short_name: osmo-gsm-tester-msc
     long_name: osmo-gsm-tester-msc
     encryption: a5_0
+    codec_list:
+    - hr3
 
 msc:
   net:
diff --git a/example/scenarios/cfg-codec-fr1.conf b/example/scenarios/cfg-codec-fr1.conf
new file mode 100644
index 0000000..f58a82d
--- /dev/null
+++ b/example/scenarios/cfg-codec-fr1.conf
@@ -0,0 +1,5 @@
+config:
+  bsc:
+    net:
+      codec_list:
+      - fr1
diff --git a/example/scenarios/cfg-codec-fr2.conf b/example/scenarios/cfg-codec-fr2.conf
new file mode 100644
index 0000000..1ad63de
--- /dev/null
+++ b/example/scenarios/cfg-codec-fr2.conf
@@ -0,0 +1,5 @@
+config:
+  bsc:
+    net:
+      codec_list:
+      - fr2
diff --git a/example/scenarios/cfg-codec-fr3.conf b/example/scenarios/cfg-codec-fr3.conf
new file mode 100644
index 0000000..fcc47cc
--- /dev/null
+++ b/example/scenarios/cfg-codec-fr3.conf
@@ -0,0 +1,5 @@
+config:
+  bsc:
+    net:
+      codec_list:
+      - fr3
diff --git a/example/scenarios/cfg-codec-hr1.conf b/example/scenarios/cfg-codec-hr1.conf
new file mode 100644
index 0000000..50a092c
--- /dev/null
+++ b/example/scenarios/cfg-codec-hr1.conf
@@ -0,0 +1,5 @@
+config:
+  bsc:
+    net:
+      codec_list:
+      - hr1
diff --git a/example/scenarios/cfg-codec-hr2.conf b/example/scenarios/cfg-codec-hr2.conf
new file mode 100644
index 0000000..e2cc9d2
--- /dev/null
+++ b/example/scenarios/cfg-codec-hr2.conf
@@ -0,0 +1,5 @@
+config:
+  bsc:
+    net:
+      codec_list:
+      - hr2
diff --git a/example/scenarios/cfg-codec-hr3.conf b/example/scenarios/cfg-codec-hr3.conf
new file mode 100644
index 0000000..c54b924
--- /dev/null
+++ b/example/scenarios/cfg-codec-hr3.conf
@@ -0,0 +1,5 @@
+config:
+  bsc:
+    net:
+      codec_list:
+      - hr3
diff --git a/src/osmo_gsm_tester/resource.py b/src/osmo_gsm_tester/resource.py
index e4e2f9d..15f2711 100644
--- a/src/osmo_gsm_tester/resource.py
+++ b/src/osmo_gsm_tester/resource.py
@@ -87,7 +87,8 @@
     RESOURCES_SCHEMA)
 
 CONF_SCHEMA = util.dict_add(
-    { 'defaults.timeout': schema.STR },
+    { 'defaults.timeout': schema.STR,
+      'config.bsc.net.codec_list[]': schema.CODEC },
     dict([('resources.%s' % key, val) for key, val in WANT_SCHEMA.items()]),
     dict([('modifiers.%s' % key, val) for key, val in WANT_SCHEMA.items()]))
 
diff --git a/src/osmo_gsm_tester/schema.py b/src/osmo_gsm_tester/schema.py
index 4a15bcd..174c28f 100644
--- a/src/osmo_gsm_tester/schema.py
+++ b/src/osmo_gsm_tester/schema.py
@@ -110,6 +110,11 @@
         return
     raise ValueError('Unknown Channel Allocator Policy %r' % val)
 
+def codec(val):
+    if val in ('hr1', 'hr2', 'hr3', 'fr1', 'fr2', 'fr3'):
+        return
+    raise ValueError('Unknown Codec value: %r' % val)
+
 INT = 'int'
 STR = 'str'
 UINT = 'uint'
@@ -126,6 +131,7 @@
 MODEM_FEATURE = 'modem_feature'
 PHY_CHAN = 'chan'
 CHAN_ALLOCATOR = 'chan_allocator'
+CODEC = 'codec'
 
 SCHEMA_TYPES = {
         INT: int,
@@ -144,6 +150,7 @@
         MODEM_FEATURE: modem_feature,
         PHY_CHAN: phy_channel_config,
         CHAN_ALLOCATOR: channel_allocator,
+        CODEC: codec,
     }
 
 def validate(config, schema):
diff --git a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
index edcf33f..95bf5e3 100644
--- a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
@@ -110,7 +110,7 @@
  mgw remote-port 2427
  mgw local-ip ${bsc.ip_address.addr}
  mgw endpoint-range 1 31
- codec-list hr3
+ codec-list ${' '.join(bsc.net.codec_list)}
  amr-config 12_2k forbidden
  amr-config 10_2k forbidden
  amr-config 7_95k forbidden