diff --git a/src/Center/Center.ts b/src/Center/Center.ts
index 1cb6bce..67ae0ea 100644
--- a/src/Center/Center.ts
+++ b/src/Center/Center.ts
@@ -5,8 +5,9 @@ import {JobEvents} from "../Job/JobEvents";
 import Logger from "../Logger";
 import {SmppSession} from "../SmppSession";
 import {CenterEvents} from "./CenterEvents";
-import {CenterPDUProcessor} from "./CenterPDUProcessor";
 import CenterStatus from "./CenterStatus";
+import {CenterPDUProcessor} from "./PDUProcessors/CenterPDUProcessor";
+import {DebugProcessor} from "./PDUProcessors/DebugProcessor";
 
 const NanoTimer = require('nanotimer');
 const smpp = require("smpp");
@@ -45,8 +46,12 @@ export class Center implements SmppSession {
 		return this._port;
 	}
 
-	// TODO: Implement a few modes and set this to default DEBUG
-	private _processor: CenterPDUProcessor | undefined;
+	// TODO: Implement processor switching
+	private _processor: CenterPDUProcessor = new DebugProcessor();
+
+	get processor(): CenterPDUProcessor {
+		return this._processor;
+	}
 
 	set processor(value: CenterPDUProcessor) {
 		this._processor = value;
@@ -116,9 +121,6 @@ export class Center implements SmppSession {
 		this._defaultMultipleJob.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize()));
 
 		this.server = smpp.createServer({}, this.eventSessionConnected.bind(this));
-		this.server.on('error', this.eventSessionError.bind(this));
-		this.server.on('close', this.eventSessionClose.bind(this));
-		this.server.on('pdu', this.eventAnyPdu.bind(this));
 		this.server.listen(this._port);
 		this.status = CenterStatus.WAITING_CONNECTION;
 	}
@@ -300,7 +302,10 @@ export class Center implements SmppSession {
 		}
 	}
 
-	private eventAnyPdu(pdu: any): void {
+	private eventAnyPdu(session: any, pdu: any): void {
 		this.eventEmitter.emit(CenterEvents.ANY_PDU, pdu);
+		this.processor.processPdu(session, pdu).then(() => {
+		}, () => {
+		});
 	}
 }
\ No newline at end of file
diff --git a/src/Center/CenterPDUProcessor.ts b/src/Center/CenterPDUProcessor.ts
deleted file mode 100644
index c7e22a4..0000000
--- a/src/Center/CenterPDUProcessor.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export interface CenterPDUProcessor {
-
-}
\ No newline at end of file
diff --git a/src/Center/PDUProcessors/CenterPDUProcessor.ts b/src/Center/PDUProcessors/CenterPDUProcessor.ts
new file mode 100644
index 0000000..96ca270
--- /dev/null
+++ b/src/Center/PDUProcessors/CenterPDUProcessor.ts
@@ -0,0 +1,3 @@
+export interface CenterPDUProcessor {
+	processPdu(session: any, pdu: any): Promise<any>;
+}
\ No newline at end of file
diff --git a/src/Center/PDUProcessors/DebugProcessor.ts b/src/Center/PDUProcessors/DebugProcessor.ts
new file mode 100644
index 0000000..b5d6aad
--- /dev/null
+++ b/src/Center/PDUProcessors/DebugProcessor.ts
@@ -0,0 +1,16 @@
+import Logger from "../../Logger";
+import {CenterPDUProcessor} from "./CenterPDUProcessor";
+
+export class DebugProcessor implements CenterPDUProcessor {
+	private logger: Logger;
+
+	constructor() {
+		this.logger = new Logger('DebugProcessor');
+	}
+
+	processPdu(session: any, pdu: any): Promise<any> {
+		return new Promise<any>((resolve, reject) => {
+			session.send(pdu.response()).then((replyPdu: any) => resolve(replyPdu), (error: any) => reject(error));
+		});
+	}
+}
\ No newline at end of file
diff --git a/src/Center/PDUProcessors/EchoProcessor.ts b/src/Center/PDUProcessors/EchoProcessor.ts
new file mode 100644
index 0000000..c4fe305
--- /dev/null
+++ b/src/Center/PDUProcessors/EchoProcessor.ts
@@ -0,0 +1,30 @@
+import Logger from "../../Logger";
+import {CenterPDUProcessor} from "./CenterPDUProcessor";
+
+const smpp = require("smpp");
+
+export class DebugProcessor implements CenterPDUProcessor {
+	private logger: Logger;
+
+	constructor() {
+		this.logger = new Logger('DebugProcessor');
+	}
+	processPdu(session: any, pdu: any): Promise<any> {
+		return new Promise<any>((resolve, reject) => {
+			let promises = [];
+			let replyPromise = session.send(pdu.response());
+			let sendPromise = session.send(new smpp.PDU('enquire_link', {
+				source_addr: pdu.destination_addr,
+				destination_addr: pdu.source_addr,
+				short_message: pdu.short_message
+			}));
+			promises.push(replyPromise);
+			promises.push(sendPromise);
+			Promise.all(promises).then((replyPdus: any) => {
+				resolve(replyPdus);
+			}).catch((error: any) => {
+				reject(error);
+			});
+		});
+	}
+}
\ No newline at end of file