diff --git a/.gitignore b/.gitignore
index f40f208f..5a789c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,6 +33,7 @@ __snapshots__
 
 !custom_components/ramses_cc
 !custom_components/ramses_cc/manifest.json
+!custom_components/ramses_cc/services.yaml
 
 !.flake8
 !.gitignore
diff --git a/custom_components/ramses_cc/schemas.py b/custom_components/ramses_cc/schemas.py
index 8e4389a..fd2ec43 100644
--- a/custom_components/ramses_cc/schemas.py
+++ b/custom_components/ramses_cc/schemas.py
@@ -231,7 +231,8 @@ def schema_is_minimal(schema: _SchemaT) -> bool:
 
 SCH_SEND_PACKET = vol.Schema(
     {
-        vol.Required(ATTR_DEVICE_ID): cv.matches_regex(r"^[0-9]{2}:[0-9]{6}$"),
+        vol.Required(ATTR_DEVICE_ID): _SCH_DEVICE_ID,
+        vol.Optional("from_id"): _SCH_DEVICE_ID,
         vol.Required("verb"): vol.In((" I", "I", "RQ", "RP", " W", "W")),
         vol.Required("code"): cv.matches_regex(r"^[0-9A-F]{4}$"),
         vol.Required("payload"): cv.matches_regex(r"^([0-9A-F][0-9A-F]){1,48}$"),
diff --git a/custom_components/ramses_cc/services.yaml b/custom_components/ramses_cc/services.yaml
index ebc35b8..c782c1b 100644
--- a/custom_components/ramses_cc/services.yaml
+++ b/custom_components/ramses_cc/services.yaml
@@ -65,6 +65,14 @@ send_packet:
       example: 01:123456
       required: true
 
+    from_id:
+      description: >-
+        The source device ID (a RAMSES ID, not an entity_id).
+        This can be used to send a packet from a faked device.
+        Optional: if not specified, the device ID of the gateway is used.
+      example: 18:123456
+      required: false
+
     verb:
       description: 'The packet verb, one of: I, RQ, RP, W (leading space not required).'
       example: RQ
diff --git a/custom_components/ramses_cc/translations/en.json b/custom_components/ramses_cc/translations/en.json
index 01c798c..fd182f2 100644
--- a/custom_components/ramses_cc/translations/en.json
+++ b/custom_components/ramses_cc/translations/en.json
@@ -152,7 +152,7 @@
             "advanced_features": {
                 "title": "Advanced features",
                 "data": {
-                    "send_packet": "Enable send_packet service for broadcasting bespoke packets",
+                    "send_packet": "Enable send_packet service for casting bespoke packets",
                     "message_events": "Emit events for messages matching regular expression"
                 },
                 "data_description": {
diff --git a/tests/tests_old/test_services.py b/tests/tests_old/test_services.py
index fac0c2c..ddcedd1 100644
--- a/tests/tests_old/test_services.py
+++ b/tests/tests_old/test_services.py
@@ -99,6 +99,7 @@
         "03:123456": {"class": "THM", "faked": True},
         "32:097710": {"class": "CO2"},
         "32:139773": {"class": "HUM"},
+        "37:123456": {"class": "FAN"},
         "40:123456": {"class": "REM", "faked": True},
     },
 }
@@ -793,3 +794,20 @@ async def test_svc_send_packet(hass: HomeAssistant, entry: ConfigEntry) -> None:
     schemas = {SVC_SEND_PACKET: SCH_SEND_PACKET}
 
     await _test_service_call(hass, SVC_SEND_PACKET, data, schemas=schemas)
+
+
+async def test_svc_send_packet_with_impersonation(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> None:
+    """Test the service call."""
+
+    data = {
+        "device_id": "37:123456",
+        "from_id": "40:123456",
+        "verb": " I",
+        "code": "22F1",
+        "payload": "000304",
+    }
+    schemas = {SVC_SEND_PACKET: SCH_SEND_PACKET}
+
+    await _test_service_call(hass, SVC_SEND_PACKET, data, schemas=schemas)