diff --git a/CHANGELOG.md b/CHANGELOG.md
index 52a1a81..4fd2eec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project follows [Semantic Versioning](https://semver.org/spec/v2.0.0.ht
 
 ## [Unreleased]
 
+### Fixed
+
+- `CalleCalls.wait_for_result` keeps polling when GET returns `call_not_ready`
+  instead of treating that documented "not terminal yet" code as a hard failure.
+
 ## [0.7.1] - 2026-09-04
 
 ### Added
diff --git a/src/calle/calls.py b/src/calle/calls.py
index a3cb6ee..0101de4 100644
--- a/src/calle/calls.py
+++ b/src/calle/calls.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from calle.errors import CalleConnectionError, CalleTimeoutError, api_error_from_response
+from calle.errors import CalleAPIError, CalleConnectionError, CalleTimeoutError, api_error_from_response
 
 
 JsonObject = dict[str, Any]
@@ -56,9 +56,14 @@ def wait_for_result(
     ) -> JsonObject:
         deadline = time.monotonic() + timeout_seconds
         while time.monotonic() <= deadline:
-            call = self.get(call_id)
-            if call.get("status") in {"completed", "failed", "canceled"}:
-                return call
+            try:
+                call = self.get(call_id)
+            except CalleAPIError as exc:
+                if exc.code != "call_not_ready":
+                    raise
+            else:
+                if call.get("status") in {"completed", "failed", "canceled"}:
+                    return call
             time.sleep(interval_seconds)
         raise CalleTimeoutError(f"Timed out waiting for CALL-E call {call_id}.")
 
diff --git a/tests/test_calls.py b/tests/test_calls.py
index b0b9796..b1df214 100644
--- a/tests/test_calls.py
+++ b/tests/test_calls.py
@@ -153,6 +153,30 @@ def test_wait_for_result_returns_failed_call() -> None:
     assert call["failure_code"] == "no_answer"
 
 
+@respx.mock
+def test_wait_for_result_retries_call_not_ready() -> None:
+    route = respx.get("https://api.heycall-e.com/v1/calls/call_123").mock(
+        side_effect=[
+            httpx.Response(
+                409,
+                json={
+                    "error": {
+                        "code": "call_not_ready",
+                        "message": "The call task has not reached a terminal state.",
+                    }
+                },
+            ),
+            httpx.Response(200, json=COMPLETED_CALL),
+        ]
+    )
+    client = CalleClient(api_key="key_test", base_url="https://api.heycall-e.com")
+
+    call = client.calls.wait_for_result("call_123", interval_seconds=0.001, timeout_seconds=0.5)
+
+    assert call["status"] == "completed"
+    assert route.call_count == 2
+
+
 @respx.mock
 def test_wait_for_result_raises_timeout() -> None:
     queued = {**COMPLETED_CALL, "status": "queued", "structured_result": None, "completed_at": None}