diff --git a/projects/ucap-webmessenger-protocol-option/src/lib/protocols/call-update.ts b/projects/ucap-webmessenger-protocol-option/src/lib/protocols/call-update.ts
index dfb34efa..25e6f0aa 100644
--- a/projects/ucap-webmessenger-protocol-option/src/lib/protocols/call-update.ts
+++ b/projects/ucap-webmessenger-protocol-option/src/lib/protocols/call-update.ts
@@ -14,7 +14,6 @@ import {
   CallForwardType
 } from '@ucap-webmessenger/core';
 
-// tslint:disable-next-line: no-empty-interface
 export interface CallUpdateRequest extends ProtocolRequest {
   // 0 IPPhoneYN(s)
   useIpPhone: boolean;
diff --git a/projects/ucap-webmessenger-protocol-option/src/lib/protocols/reg-update.ts b/projects/ucap-webmessenger-protocol-option/src/lib/protocols/reg-update.ts
index ab69df7f..c4376e03 100644
--- a/projects/ucap-webmessenger-protocol-option/src/lib/protocols/reg-update.ts
+++ b/projects/ucap-webmessenger-protocol-option/src/lib/protocols/reg-update.ts
@@ -10,7 +10,6 @@ import {
   PacketBodyValue
 } from '@ucap-webmessenger/protocol';
 
-// tslint:disable-next-line: no-empty-interface
 export interface RegUpdateRequest extends ProtocolRequest {
   // 0 알림방법(n)
   notificationMethod: NotificationMethod;
diff --git a/projects/ucap-webmessenger-protocol-option/src/lib/protocols/update.ts b/projects/ucap-webmessenger-protocol-option/src/lib/protocols/update.ts
index b6646199..5c867bba 100644
--- a/projects/ucap-webmessenger-protocol-option/src/lib/protocols/update.ts
+++ b/projects/ucap-webmessenger-protocol-option/src/lib/protocols/update.ts
@@ -8,7 +8,6 @@ import {
   PacketBodyValue
 } from '@ucap-webmessenger/protocol';
 
-// tslint:disable-next-line: no-empty-interface
 export interface UpdateRequest extends ProtocolRequest {
   // 알람여부(y)
   receiveAlarm: boolean;
diff --git a/projects/ucap-webmessenger-protocol-ping/src/lib/protocols/ping.ts b/projects/ucap-webmessenger-protocol-ping/src/lib/protocols/ping.ts
new file mode 100644
index 00000000..f0db9e61
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-ping/src/lib/protocols/ping.ts
@@ -0,0 +1,34 @@
+import {
+  ProtocolRequest,
+  ProtocolResponse,
+  ProtocolEncoder,
+  PacketBody,
+  ProtocolDecoder,
+  ProtocolMessage,
+  PacketBodyValue
+} from '@ucap-webmessenger/protocol';
+
+export interface PingRequest extends ProtocolRequest {
+  /** 상태코드(s) */
+  statusCode: string;
+}
+
+// tslint:disable-next-line: no-empty-interface
+export interface PingResponse extends ProtocolResponse {}
+
+export const encodePing: ProtocolEncoder<PingRequest> = (req: PingRequest) => {
+  const bodyList: PacketBody[] = [];
+
+  bodyList.push({
+    type: PacketBodyValue.String,
+    value: req.statusCode
+  });
+
+  return bodyList;
+};
+
+export const decodePing: ProtocolDecoder<PingResponse> = (
+  message: ProtocolMessage
+) => {
+  return {} as PingResponse;
+};
diff --git a/projects/ucap-webmessenger-protocol-ping/src/lib/services/ping-protocol.service.ts b/projects/ucap-webmessenger-protocol-ping/src/lib/services/ping-protocol.service.ts
index 82e533fd..2e570501 100644
--- a/projects/ucap-webmessenger-protocol-ping/src/lib/services/ping-protocol.service.ts
+++ b/projects/ucap-webmessenger-protocol-ping/src/lib/services/ping-protocol.service.ts
@@ -1,8 +1,29 @@
 import { Injectable } from '@angular/core';
+import { ProtocolService } from '@ucap-webmessenger/protocol';
+
+import { Observable } from 'rxjs';
+import { take, map } from 'rxjs/operators';
+
+import {
+  PingRequest,
+  PingResponse,
+  encodePing,
+  decodePing
+} from '../protocols/ping';
+import { SVC_TYPE_PING, SSVC_TYPE_PING_REQ } from '../types/service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class PingProtocolService {
-  constructor() {}
+  constructor(private protocolService: ProtocolService) {}
+
+  public ping(req: PingRequest): Observable<PingResponse> {
+    return this.protocolService
+      .call(SVC_TYPE_PING, SSVC_TYPE_PING_REQ, ...encodePing(req))
+      .pipe(
+        take(1),
+        map(res => decodePing(res))
+      );
+  }
 }
diff --git a/projects/ucap-webmessenger-protocol-ping/src/lib/types/service.ts b/projects/ucap-webmessenger-protocol-ping/src/lib/types/service.ts
new file mode 100644
index 00000000..044a5d7f
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-ping/src/lib/types/service.ts
@@ -0,0 +1,4 @@
+export const SVC_TYPE_PING = 99;
+
+export const SSVC_TYPE_PING_REQ = 1;
+export const SSVC_TYPE_PING_RES = 2;
diff --git a/projects/ucap-webmessenger-protocol-ping/src/public-api.ts b/projects/ucap-webmessenger-protocol-ping/src/public-api.ts
index 6e0259ee..82235eff 100644
--- a/projects/ucap-webmessenger-protocol-ping/src/public-api.ts
+++ b/projects/ucap-webmessenger-protocol-ping/src/public-api.ts
@@ -4,4 +4,6 @@
 
 export * from './lib/services/ping-protocol.service';
 
+export * from './lib/types/service';
+
 export * from './lib/ucap-ping-protocol.module';