diff --git a/src/Center/Center.ts b/src/Center/Center.ts
index 1a0ee6c..62a0bac 100644
--- a/src/Center/Center.ts
+++ b/src/Center/Center.ts
@@ -9,7 +9,7 @@ const NanoTimer = require('nanotimer');
 const smpp = require("smpp");
 
 export class Center extends SmppSession {
-	readonly STATUS: string[] = [
+	readonly STATUSES: string[] = [
 		"WAITING CONNECTION",
 		"CONNECTING",
 		"CONNECTED",
@@ -18,7 +18,7 @@ export class Center extends SmppSession {
 	_username: string;
 	_password: string;
 	_id: number;
-	_status: string = this.STATUS[0];
+	_status: string = this.STATUSES[0];
 	port: number;
 
 	pduProcessors: PduProcessor[] = [];
@@ -93,7 +93,6 @@ export class Center extends SmppSession {
 			this.sendTimer.setInterval(() => {
 				if (count > 0 && counter >= count) {
 					this.cancelSendInterval();
-					this.setStatus(2);
 				} else {
 					this.sendPdu(job.pdu, true);
 					counter++;
diff --git a/src/Client/Client.ts b/src/Client/Client.ts
index 45e1cbe..4a9c4e4 100644
--- a/src/Client/Client.ts
+++ b/src/Client/Client.ts
@@ -11,7 +11,7 @@ const smpp = require("smpp");
 const AUTO_ENQUIRE_LINK_PERIOD: number = Number(process.env.AUTO_ENQUIRE_LINK_PERIOD) || 30000;
 
 export class Client extends SmppSession {
-	readonly STATUS: string[] = [
+	readonly STATUSES: string[] = [
 		"NOT CONNECTED",
 		"CONNECTING",
 		"CONNECTED",
@@ -23,7 +23,7 @@ export class Client extends SmppSession {
 	_username: string;
 	_password: string;
 	_id: number;
-	_status: string = this.STATUS[0];
+	_status: string = this.STATUSES[0];
 	pduProcessors: PduProcessor[] = [];
 	readonly logger: Logger;
 	private session?: any;
@@ -72,7 +72,7 @@ export class Client extends SmppSession {
 
 	doConnect(): PersistentPromise {
 		this.connectPromise = new PersistentPromise((resolve, reject) => {
-			if (this.status !== this.STATUS[0]) {
+			if (this.status !== this.STATUSES[0]) {
 				let errorString = `Client-${this.id} already connected`;
 				this.logger.log1(errorString);
 				reject(errorString);
@@ -150,8 +150,8 @@ export class Client extends SmppSession {
 
 			this.setStatus(4);
 
-			let counter = 0;
-			let previousUpdateCounter = 0;
+			let counter: number = 0;
+			let previousUpdateCounter: number = 0;
 
 			this.counterUpdateTimer.setInterval(() => {
 				if (previousUpdateCounter !== counter) {
@@ -160,8 +160,9 @@ export class Client extends SmppSession {
 				}
 			}, '', `${this.MESSAGE_SEND_UPDATE_DELAY / 1000} s`);
 
-			let count = job.count || 1;
-			let interval = 1 / (job.perSecond || 1);
+			let count: number = job.count || 1;
+			let interval: number = 1 / (job.perSecond || 1);
+			this.setStatus(5);
 			this.sendTimer.setInterval(() => {
 				if (count > 0 && counter >= count) {
 					this.cancelSendInterval();
@@ -266,7 +267,7 @@ export class Client extends SmppSession {
 	}
 
 	private validateBound(reject: (reason?: any) => void) {
-		if (this.status !== this.STATUS[4]) {
+		if (this.status !== this.STATUSES[4]) {
 			let errorMessage = `Client-${this.id} is not bound`;
 			this.logger.log1(errorMessage);
 			reject(errorMessage);
diff --git a/src/SmppSession.ts b/src/SmppSession.ts
index e9338c6..2a4e4eb 100644
--- a/src/SmppSession.ts
+++ b/src/SmppSession.ts
@@ -13,7 +13,7 @@ export abstract class SmppSession {
 		ANY_PDU: "ANY_PDU",
 		MESSAGE_SEND_COUNTER_UPDATE_EVENT: "MESSAGE_SEND_COUNTER_UPDATE_EVENT",
 	};
-	abstract STATUS: string[];
+	abstract STATUSES: string[];
 	abstract pduProcessors: PduProcessor[];
 	readonly UPDATE_WS: string = "UPDATE_WS";
 	readonly eventEmitter: EventEmitter = new EventEmitter();
@@ -93,7 +93,7 @@ export abstract class SmppSession {
 	}
 
 	setStatus(statusIndex: number) {
-		this._status = this.STATUS[statusIndex];
+		this._status = this.STATUSES[statusIndex];
 		this.eventEmitter.emit(this.EVENT.STATUS_CHANGED, this.status);
 	}
 
@@ -116,6 +116,7 @@ export abstract class SmppSession {
 	cancelSendInterval(): void {
 		this.sendTimer.clearInterval();
 		this.counterUpdateTimer.clearInterval();
+		this.setStatus(this.STATUSES.length - 2);
 	}
 
 	abstract close(): Promise<void>;