diff --git a/ops/agent-phone.mjs b/ops/agent-phone.mjs
index 25f3b5c..9f68737 100755
--- a/ops/agent-phone.mjs
+++ b/ops/agent-phone.mjs
@@ -457,10 +457,26 @@ export function coHostSpeech(pin, agent) {
  * all of the time. So compare: words that are in what the co-host is saying are
  * its echo; words that are not are a person, and a person always gets through.
  */
+/**
+ * Every multi-word spelling of an agent's name, longest first: the transcriber
+ * splits our made-up names into two words ("RiotCoder" comes back as "Riot
+ * Coder", "ChaosPunk" as "chaos punk"), and two tokens never match the one the
+ * host actually said. Only the multi-word aliases are collapsed - single generic
+ * ones like "security" or "chaos" would merge words the guest is entitled to use
+ * himself.
+ */
+const SPLIT_NAMES = Object.entries(NAME_ALIASES)
+	.flatMap(([agent, names]) => names.filter((n) => n.includes(' ')).map((n) => [n, agent.replace(/0/g, 'o')]))
+	.sort((a, b) => b[0].length - a[0].length);
+/** One spelling of a name per token, so "Riot Coder" and "RiotCoder" are the same word. */
+function oneWordNames(text) {
+	let t = String(text).toLowerCase().replace(/0/g, 'o');
+	for (const [alias, agent] of SPLIT_NAMES) t = t.split(alias).join(agent);
+	return t;
+}
 export function echoesFloor(heard, floorText) {
 	const words = (text) =>
-		String(text)
-			.toLowerCase()
+		oneWordNames(text)
 			.replace(/[^a-z0-9' ]+/g, ' ')
 			.split(/\s+/)
 			.filter((w) => w.length > 2);
diff --git a/test/agent-phone.test.mjs b/test/agent-phone.test.mjs
index b43d9f7..3facc87 100644
--- a/test/agent-phone.test.mjs
+++ b/test/agent-phone.test.mjs
@@ -282,6 +282,21 @@ test('each agent keeps a few recent lines, not the whole call', () => {
   worker.releaseFloor(pin, 'riotcoder');
 });
 
+test('a host saying its own name is not the guest, however the transcriber spells it', () => {
+  // The rehearsal: riotcoder said "I'm RiotCoder, Anthony's AI assistant and
+  // co-host" and the transcriber wrote "I'm Riot Coder." Two tokens never
+  // matched the one word the host said, so the overlap fell to 1/3 and the host
+  // introducing itself was logged as `room:` - the guest.
+  const floor = "I'm RiotCoder, Anthony's AI assistant and co-host,";
+  assert.equal(worker.echoesFloor("I'm Riot Coder.", floor), true);
+  assert.equal(worker.echoesFloor('Hello. I am Chaos Punk, an AI assistant and co host.', "Hello, I'm ChaosPunk, an AI assistant and co-host."), true);
+  // 0 read as o, both ways.
+  assert.equal(worker.echoesFloor('chaospunk here', 'cha0spunk here'), true);
+  // The guest still gets through, and a generic word is not a name.
+  assert.equal(worker.echoesFloor('Can you hear me?', floor), false);
+  assert.equal(worker.echoesFloor('We run our own security and nothing else', 'rootkey handles the scanning for us'), false);
+});
+
 test('a model that says PASS is saying nothing, not reading the word out', () => {
   assert.deepEqual(worker.parseTurn('SAY: PASS'), { kind: 'pass', text: '' });
   assert.deepEqual(worker.parseTurn('PASS'), { kind: 'pass', text: '' });