diff --git a/packages/doorman-api/src/functions/api/door/info.ts b/packages/doorman-api/src/functions/api/door/info.ts
index d2b844c..a23992a 100644
--- a/packages/doorman-api/src/functions/api/door/info.ts
+++ b/packages/doorman-api/src/functions/api/door/info.ts
@@ -6,8 +6,8 @@ import { ServerlessEventObject, ServerlessFunctionSignature } from "@twilio-labs
 import { TwilioContext } from "../../../types/TwilioContext";
 import { createDDBClient, createDynaBridgeClient, ddbItemToJSON, getDoorAliasCommand, getDoorConfigCommand, getLockStatusCommand, isLockOpen } from "../../../utils/ddb";
 import { DoorStatus } from "../../../types/DoorStatus";
-import { DoorConfig } from "../../../types/DoorConfig";
-import { DOOR_CONFIG_SK, getDoorConfigID } from "../../../schema/DoorConfig";
+import { getDoorConfigID } from "../../../schema/DoorConfig";
+import { getDoorAliasID } from "../../../schema/DoorAlias";
 
 export interface InfoRequest extends ServerlessEventObject {
   door?: string;
@@ -42,16 +42,16 @@ export const handler: ServerlessFunctionSignature<TwilioContext, InfoRequest> =
   const db = createDynaBridgeClient(context);
 
   if (buzzer) {
-    door = await client.send(getDoorAliasCommand(buzzer))
+    door = await db.entities.doorAlias.findById(getDoorAliasID(buzzer))
       .then(async (alias) => {
-        if (!alias.Item) {
+        if (!alias) {
           response
             .setStatusCode(404)
             .appendHeader('Content-Type', 'application/json')
             .setBody({ err: "This buzzer is not registered" });
           return undefined;
         }
-        return alias.Item.name.S;
+        return alias.name;
       });
   }
 
@@ -74,7 +74,7 @@ export const handler: ServerlessFunctionSignature<TwilioContext, InfoRequest> =
             door,
             fallbackNumbers: config.fallbackNumbers,
             pressKey: config.pressKey,
-            discordUsers: config.discordUsers || [],
+            discordUsers: config.discordUsers,
           });
       } else {
         await client.send(getLockStatusCommand(door))
@@ -93,7 +93,7 @@ export const handler: ServerlessFunctionSignature<TwilioContext, InfoRequest> =
                 buzzerCode: config.buzzerCode,
                 fallbackNumbers: config.fallbackNumbers,
                 pressKey: config.pressKey,
-                discordUsers: config.discordUsers || [],
+                discordUsers: config.discordUsers,
                 greeting: config.greeting || "",
               });
       
diff --git a/packages/doorman-api/src/schema/DoorAlias.ts b/packages/doorman-api/src/schema/DoorAlias.ts
new file mode 100644
index 0000000..047aa71
--- /dev/null
+++ b/packages/doorman-api/src/schema/DoorAlias.ts
@@ -0,0 +1,22 @@
+import { z } from "zod";
+import { DynaBridge, DynaBridgeEntity } from 'dynabridge';
+
+export const DOOR_ALIAS_SK = "alias";
+
+export const DoorAliasSchema = z.object({
+  // keys
+  PK: z.string(), // phone number (buzzer number)
+  SK: z.literal(DOOR_ALIAS_SK).default(DOOR_ALIAS_SK),
+  name: z.string(),
+});
+
+export const getDoorAliasID = (buzzer: string): string[] => {
+  return [buzzer, DOOR_ALIAS_SK];
+}
+
+export type DoorAlias = z.infer<typeof DoorAliasSchema>;
+
+export const DoorAliasEntity: DynaBridgeEntity<DoorAlias> = {
+  tableName: "doorman",
+  id: ["PK", "SK"],
+};
diff --git a/packages/doorman-api/src/schema/DoorConfig.ts b/packages/doorman-api/src/schema/DoorConfig.ts
index 895976e..7643506 100644
--- a/packages/doorman-api/src/schema/DoorConfig.ts
+++ b/packages/doorman-api/src/schema/DoorConfig.ts
@@ -15,7 +15,7 @@ export const DoorConfigSchema = z.object({
   fallbackNumbers: z.array(z.string()),
   pin: z.string(),
   pressKey: z.string(),
-  greeting: z.string(),
+  greeting: z.string().optional(),
   timeout: z.number(),
 });
 
diff --git a/packages/doorman-api/src/utils/ddb.ts b/packages/doorman-api/src/utils/ddb.ts
index cd6b1d6..2eafd2d 100644
--- a/packages/doorman-api/src/utils/ddb.ts
+++ b/packages/doorman-api/src/utils/ddb.ts
@@ -4,6 +4,7 @@ import { TwilioContext } from "../types/TwilioContext";
 import { DoorConfig } from "../types/DoorConfig";
 import { DynaBridge } from "dynabridge";
 import { DoorConfigEntity, EditDoorConfigEntity } from "../schema/DoorConfig";
+import { DoorAliasEntity } from "../schema/DoorAlias";
 
 export const createDDBClient = (context: TwilioContext) => {
   return new DynamoDBClient({ 
@@ -20,6 +21,7 @@ export const createDynaBridgeClient = (context: TwilioContext) => {
   return new DynaBridge({
     doorConfig: DoorConfigEntity,
     editDoorConfig: EditDoorConfigEntity,
+    doorAlias: DoorAliasEntity,
   }, {
     serialize: (entity) => entity,
     deserialize: (entity) => {