diff --git a/tests/hfp_test.py b/tests/hfp_test.py
new file mode 100644
index 00000000..bc6ccaf9
--- /dev/null
+++ b/tests/hfp_test.py
@@ -0,0 +1,100 @@
+# Copyright 2021-2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# -----------------------------------------------------------------------------
+# Imports
+# -----------------------------------------------------------------------------
+import asyncio
+import logging
+import os
+import pytest
+
+from typing import Tuple
+
+from .test_utils import TwoDevices
+from bumble import hfp
+from bumble import rfcomm
+
+
+# -----------------------------------------------------------------------------
+# Logging
+# -----------------------------------------------------------------------------
+logger = logging.getLogger(__name__)
+
+
+# -----------------------------------------------------------------------------
+async def make_hfp_connections(
+    hf_config: hfp.Configuration,
+) -> Tuple[hfp.HfProtocol, hfp.HfpProtocol]:
+    # Setup devices
+    devices = TwoDevices()
+    await devices.setup_connection()
+
+    # Setup RFCOMM channel
+    wait_dlc = asyncio.get_running_loop().create_future()
+    rfcomm_channel = rfcomm.Server(devices.devices[0]).listen(
+        lambda dlc: wait_dlc.set_result(dlc)
+    )
+    assert devices.connections[0]
+    assert devices.connections[1]
+    client_mux = await rfcomm.Client(devices.devices[1], devices.connections[1]).start()
+
+    client_dlc = await client_mux.open_dlc(rfcomm_channel)
+    server_dlc = await wait_dlc
+
+    # Setup HFP connnection
+    hf = hfp.HfProtocol(client_dlc, hf_config)
+    ag = hfp.HfpProtocol(server_dlc)
+    return hf, ag
+
+
+# -----------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_slc():
+    hf_config = hfp.Configuration(
+        supported_hf_features=[], supported_hf_indicators=[], supported_audio_codecs=[]
+    )
+    hf, ag = await make_hfp_connections(hf_config)
+
+    async def ag_loop():
+        while line := await ag.next_line():
+            if line.startswith('AT+BRSF'):
+                ag.send_response_line('+BRSF: 0')
+            elif line.startswith('AT+CIND=?'):
+                ag.send_response_line(
+                    '+CIND: ("call",(0,1)),("callsetup",(0-3)),("service",(0-1)),'
+                    '("signal",(0-5)),("roam",(0,1)),("battchg",(0-5)),'
+                    '("callheld",(0-2))'
+                )
+            elif line.startswith('AT+CIND?'):
+                ag.send_response_line('+CIND: 0,0,1,4,1,5,0')
+            ag.send_response_line('OK')
+
+    ag_task = asyncio.create_task(ag_loop())
+
+    await hf.initiate_slc()
+    ag_task.cancel()
+
+
+# -----------------------------------------------------------------------------
+async def run():
+    await test_slc()
+
+
+# -----------------------------------------------------------------------------
+if __name__ == '__main__':
+    logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'INFO').upper())
+    asyncio.run(run())