diff --git a/homeassistant/components/modem_callerid/button.py b/homeassistant/components/modem_callerid/button.py
index 5f9e4cf489c..703339f54e9 100644
--- a/homeassistant/components/modem_callerid/button.py
+++ b/homeassistant/components/modem_callerid/button.py
@@ -32,7 +32,6 @@ async def async_setup_entry(
 class PhoneModemButton(ButtonEntity):
     """Implementation of USB modem caller ID button."""
 
-    _attr_icon = "mdi:phone-hangup"
     _attr_translation_key = "phone_modem_reject"
     _attr_has_entity_name = True
 
diff --git a/homeassistant/components/modem_callerid/const.py b/homeassistant/components/modem_callerid/const.py
index d144e2afd5c..361766f22a7 100644
--- a/homeassistant/components/modem_callerid/const.py
+++ b/homeassistant/components/modem_callerid/const.py
@@ -7,7 +7,6 @@ from serial import SerialException
 DATA_KEY_API = "api"
 DEFAULT_NAME = "Phone Modem"
 DOMAIN = "modem_callerid"
-ICON = "mdi:phone-classic"
 
 EXCEPTIONS: Final = (
     FileNotFoundError,
diff --git a/homeassistant/components/modem_callerid/icons.json b/homeassistant/components/modem_callerid/icons.json
new file mode 100644
index 00000000000..956d941f1db
--- /dev/null
+++ b/homeassistant/components/modem_callerid/icons.json
@@ -0,0 +1,14 @@
+{
+  "entity": {
+    "button": {
+      "phone_modem_reject": {
+        "default": "mdi:phone-hangup"
+      }
+    },
+    "sensor": {
+      "incoming_call": {
+        "default": "mdi:phone-classic"
+      }
+    }
+  }
+}
diff --git a/homeassistant/components/modem_callerid/sensor.py b/homeassistant/components/modem_callerid/sensor.py
index c7c4403300a..aac43b72c0d 100644
--- a/homeassistant/components/modem_callerid/sensor.py
+++ b/homeassistant/components/modem_callerid/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.core import Event, HomeAssistant, callback
 from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from .const import CID, DATA_KEY_API, DOMAIN, ICON
+from .const import CID, DATA_KEY_API, DOMAIN
 
 
 async def async_setup_entry(
@@ -40,10 +40,10 @@ async def async_setup_entry(
 class ModemCalleridSensor(SensorEntity):
     """Implementation of USB modem caller ID sensor."""
 
-    _attr_icon = ICON
     _attr_should_poll = False
     _attr_has_entity_name = True
     _attr_name = None
+    _attr_translation_key = "incoming_call"
 
     def __init__(self, api: PhoneModem, server_unique_id: str) -> None:
         """Initialize the sensor."""