diff --git a/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open.ts b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open.ts
new file mode 100644
index 00000000..f3c334a3
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open.ts
@@ -0,0 +1,48 @@
+import {
+  ProtocolRequest,
+  ProtocolResponse,
+  ProtocolEncoder,
+  PacketBody,
+  PacketBodyValue,
+  ProtocolDecoder,
+  ProtocolMessage
+} from '@ucap-webmessenger/protocol';
+
+export interface RoomOpenRequest extends ProtocolRequest {
+  // 0. 구분자
+  divCd: string;
+  // 1n. 초대자 userSeq(n)...
+  userSeqs: number[];
+}
+
+export interface RoomOpenResponse extends ProtocolResponse {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방SEQ(s)
+  roomSeq: string;
+  // 2.	신규여부(y)
+  newRoom: boolean;
+}
+
+export const encodeRoomOpen: ProtocolEncoder<RoomOpenRequest> = (
+  req: RoomOpenRequest
+) => {
+  const bodyList: PacketBody[] = [];
+
+  bodyList.push({ type: PacketBodyValue.String, value: req.divCd });
+  for (const userSeq of req.userSeqs) {
+    bodyList.push({ type: PacketBodyValue.Integer, value: userSeq });
+  }
+
+  return bodyList;
+};
+
+export const decodeRoomOpen: ProtocolDecoder<RoomOpenResponse> = (
+  message: ProtocolMessage
+) => {
+  return {
+    divCd: message.bodyList[0],
+    roomSeq: message.bodyList[1],
+    newRoom: message.bodyList[2] === 'Y' ? true : false
+  } as RoomOpenResponse;
+};
diff --git a/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open2.ts b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open2.ts
new file mode 100644
index 00000000..cc148195
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open2.ts
@@ -0,0 +1,54 @@
+import {
+  ProtocolRequest,
+  ProtocolResponse,
+  ProtocolEncoder,
+  PacketBody,
+  PacketBodyValue,
+  ProtocolDecoder,
+  ProtocolMessage
+} from '@ucap-webmessenger/protocol';
+
+export interface RoomOpen2Request extends ProtocolRequest {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방제목(s)
+  roomName: string;
+  // 2n. 초대자 userSeq(n)...
+  userSeqs: number[];
+}
+
+export interface RoomOpen2Response extends ProtocolResponse {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방제목(s)
+  roomName: string;
+  // 2. 대화방SEQ(s)
+  roomSeq: string;
+  // 3.	신규여부(y)
+  newRoom: boolean;
+}
+
+export const encodeRoomOpen2: ProtocolEncoder<RoomOpen2Request> = (
+  req: RoomOpen2Request
+) => {
+  const bodyList: PacketBody[] = [];
+
+  bodyList.push({ type: PacketBodyValue.String, value: req.divCd });
+  bodyList.push({ type: PacketBodyValue.String, value: req.roomName.trim() });
+  for (const userSeq of req.userSeqs) {
+    bodyList.push({ type: PacketBodyValue.Integer, value: userSeq });
+  }
+
+  return bodyList;
+};
+
+export const decodeRoomOpen2: ProtocolDecoder<RoomOpen2Response> = (
+  message: ProtocolMessage
+) => {
+  return {
+    divCd: message.bodyList[0],
+    roomName: message.bodyList[1],
+    roomSeq: message.bodyList[2],
+    newRoom: message.bodyList[3] === 'Y' ? true : false
+  } as RoomOpen2Response;
+};
diff --git a/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open3.ts b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open3.ts
new file mode 100644
index 00000000..ddf7d4bf
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open3.ts
@@ -0,0 +1,72 @@
+import {
+  ProtocolRequest,
+  ProtocolResponse,
+  ProtocolEncoder,
+  PacketBody,
+  PacketBodyValue,
+  ProtocolDecoder,
+  ProtocolMessage
+} from '@ucap-webmessenger/protocol';
+
+export interface RoomOpen3Request extends ProtocolRequest {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방제목(s)
+  roomName: string;
+  // 2. 타이머대화방여부YN(s)
+  isTimerRoom: boolean;
+  // 3. 타이머시간(n)
+  timerRoomInterval: number;
+  // 4n. 초대자 userSeq(n)...
+  userSeqs: number[];
+}
+
+export interface RoomOpen3Response extends ProtocolResponse {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방제목(s)
+  roomName: string;
+  // 2. 대화방SEQ(s)
+  roomSeq: string;
+  // 3.	신규여부(y)
+  newRoom: boolean;
+  // 4. 타이머대화방여부YN(s)
+  isTimerRoom: boolean;
+  // 5. 타이머시간(n)
+  timerRoomInterval: number;
+}
+
+export const encodeRoomOpen3: ProtocolEncoder<RoomOpen3Request> = (
+  req: RoomOpen3Request
+) => {
+  const bodyList: PacketBody[] = [];
+
+  bodyList.push({ type: PacketBodyValue.String, value: req.divCd });
+  bodyList.push({ type: PacketBodyValue.String, value: req.roomName.trim() });
+  bodyList.push({
+    type: PacketBodyValue.String,
+    value: req.isTimerRoom === true ? 'Y' : 'N'
+  });
+  bodyList.push({
+    type: PacketBodyValue.Integer,
+    value: req.isTimerRoom !== true ? 0 : req.timerRoomInterval
+  });
+  for (const userSeq of req.userSeqs) {
+    bodyList.push({ type: PacketBodyValue.Integer, value: userSeq });
+  }
+
+  return bodyList;
+};
+
+export const decodeRoomOpen3: ProtocolDecoder<RoomOpen3Response> = (
+  message: ProtocolMessage
+) => {
+  return {
+    divCd: message.bodyList[0],
+    roomName: message.bodyList[1],
+    roomSeq: message.bodyList[2],
+    newRoom: message.bodyList[3] === 'Y' ? true : false,
+    isTimerRoom: message.bodyList[4] === 'Y' ? true : false,
+    timerRoomInterval: message.bodyList[5] || 0
+  } as RoomOpen3Response;
+};
diff --git a/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open4.ts b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open4.ts
new file mode 100644
index 00000000..0ea58aa6
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-room/src/lib/models/room-open4.ts
@@ -0,0 +1,72 @@
+import {
+  ProtocolRequest,
+  ProtocolResponse,
+  ProtocolEncoder,
+  PacketBody,
+  PacketBodyValue,
+  ProtocolDecoder,
+  ProtocolMessage
+} from '@ucap-webmessenger/protocol';
+
+export interface RoomOpen4Request extends ProtocolRequest {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방제목(s)
+  roomName: string;
+  // 2. 타이머대화방여부YN(s)
+  isTimerRoom: boolean;
+  // 3. 타이머시간(n)
+  timerRoomInterval: number;
+  // 4n. 초대자 userSeq(n)...
+  userSeqs: number[];
+}
+
+export interface RoomOpen4Response extends ProtocolResponse {
+  // 0. 구분자
+  divCd: string;
+  // 1. 대화방제목(s)
+  roomName: string;
+  // 2. 대화방SEQ(s)
+  roomSeq: string;
+  // 3.	신규여부(y)
+  newRoom: boolean;
+  // 4. 타이머대화방여부YN(s)
+  isTimerRoom: boolean;
+  // 5. 타이머시간(n)
+  timerRoomInterval: number;
+}
+
+export const encodeRoomOpen4: ProtocolEncoder<RoomOpen4Request> = (
+  req: RoomOpen4Request
+) => {
+  const bodyList: PacketBody[] = [];
+
+  bodyList.push({ type: PacketBodyValue.String, value: req.divCd });
+  bodyList.push({ type: PacketBodyValue.String, value: req.roomName.trim() });
+  bodyList.push({
+    type: PacketBodyValue.String,
+    value: req.isTimerRoom === true ? 'Y' : 'N'
+  });
+  bodyList.push({
+    type: PacketBodyValue.Integer,
+    value: req.isTimerRoom !== true ? 0 : req.timerRoomInterval
+  });
+  for (const userSeq of req.userSeqs) {
+    bodyList.push({ type: PacketBodyValue.Integer, value: userSeq });
+  }
+
+  return bodyList;
+};
+
+export const decodeRoomOpen4: ProtocolDecoder<RoomOpen4Response> = (
+  message: ProtocolMessage
+) => {
+  return {
+    divCd: message.bodyList[0],
+    roomName: message.bodyList[1],
+    roomSeq: message.bodyList[2],
+    newRoom: message.bodyList[3] === 'Y' ? true : false,
+    isTimerRoom: message.bodyList[4] === 'Y' ? true : false,
+    timerRoomInterval: message.bodyList[5] || 0
+  } as RoomOpen4Response;
+};
diff --git a/projects/ucap-webmessenger-protocol-room/src/lib/services/room-protocol.service.ts b/projects/ucap-webmessenger-protocol-room/src/lib/services/room-protocol.service.ts
index d1d3542c..ac75281c 100644
--- a/projects/ucap-webmessenger-protocol-room/src/lib/services/room-protocol.service.ts
+++ b/projects/ucap-webmessenger-protocol-room/src/lib/services/room-protocol.service.ts
@@ -1,8 +1,68 @@
 import { Injectable } from '@angular/core';
 
+import { Observable } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+import { ProtocolService } from '@ucap-webmessenger/protocol';
+import {
+  SVC_TYPE_ROOM,
+  SSVC_TYPE_ROOM_OPEN_REQ,
+  SSVC_TYPE_ROOM_OPEN2_REQ,
+  SSVC_TYPE_ROOM_OPEN3_REQ,
+  SSVC_TYPE_ROOM_OPEN4_REQ
+} from '../types/service';
+import {
+  RoomOpenRequest,
+  encodeRoomOpen,
+  decodeRoomOpen,
+  RoomOpenResponse
+} from '../models/room-open';
+import {
+  RoomOpen2Request,
+  RoomOpen2Response,
+  decodeRoomOpen2,
+  encodeRoomOpen2
+} from '../models/room-open2';
+import {
+  RoomOpen3Request,
+  RoomOpen3Response,
+  encodeRoomOpen3,
+  decodeRoomOpen3
+} from '../models/room-open3';
+import {
+  RoomOpen4Request,
+  RoomOpen4Response,
+  encodeRoomOpen4,
+  decodeRoomOpen4
+} from '../models/room-open4';
+
 @Injectable({
   providedIn: 'root'
 })
 export class RoomProtocolService {
-  constructor() {}
+  constructor(private protocolService: ProtocolService) {}
+
+  public roomOpen(req: RoomOpenRequest): Observable<RoomOpenResponse> {
+    return this.protocolService
+      .call(SVC_TYPE_ROOM, SSVC_TYPE_ROOM_OPEN_REQ, ...encodeRoomOpen(req))
+      .pipe(map(res => decodeRoomOpen(res)));
+  }
+
+  public roomOpen2(req: RoomOpen2Request): Observable<RoomOpen2Response> {
+    return this.protocolService
+      .call(SVC_TYPE_ROOM, SSVC_TYPE_ROOM_OPEN2_REQ, ...encodeRoomOpen2(req))
+      .pipe(map(res => decodeRoomOpen2(res)));
+  }
+
+  public roomOpen3(req: RoomOpen3Request): Observable<RoomOpen3Response> {
+    return this.protocolService
+      .call(SVC_TYPE_ROOM, SSVC_TYPE_ROOM_OPEN3_REQ, ...encodeRoomOpen3(req))
+      .pipe(map(res => decodeRoomOpen3(res)));
+  }
+
+  public roomOpen4(req: RoomOpen4Request): Observable<RoomOpen4Response> {
+    return this.protocolService
+      .call(SVC_TYPE_ROOM, SSVC_TYPE_ROOM_OPEN4_REQ, ...encodeRoomOpen4(req))
+      .pipe(map(res => decodeRoomOpen4(res)));
+  }
 }
diff --git a/projects/ucap-webmessenger-protocol-room/src/lib/types/service.ts b/projects/ucap-webmessenger-protocol-room/src/lib/types/service.ts
new file mode 100644
index 00000000..b515ce14
--- /dev/null
+++ b/projects/ucap-webmessenger-protocol-room/src/lib/types/service.ts
@@ -0,0 +1,43 @@
+export const SVC_TYPE_ROOM = 10; // 대화방
+export const SSVC_TYPE_ROOM_OPEN_REQ = 1; // 대화방 개설 요청
+export const SSVC_TYPE_ROOM_OPEN_RES = 2;
+export const SSVC_TYPE_ROOM_OPEN2_REQ = 3; // 대화방 개설 요청2
+export const SSVC_TYPE_ROOM_OPEN2_RES = 4;
+export const SSVC_TYPE_ROOM_OPEN3_REQ = 5; // 대화방 개설 요청3
+export const SSVC_TYPE_ROOM_OPEN3_RES = 6;
+export const SSVC_TYPE_ROOM_OPEN4_REQ = 7; // 대화방 개설 요청4
+export const SSVC_TYPE_ROOM_OPEN4_RES = 8;
+export const SSVC_TYPE_ROOM_INVITE_REQ = 11; // 초대 요청
+export const SSVC_TYPE_ROOM_INVITE_RES = 12;
+export const SSVC_TYPE_ROOM_INVITE_NOTI = 13;
+
+export const SSVC_TYPE_ROOM_INFO_REQ = 21; // 대화방 정보 요청
+export const SSVC_TYPE_ROOM_INFO_ROOM = 22; // 대화방 정보
+export const SSVC_TYPE_ROOM_INFO_USER = 23; // 참가자 정보
+export const SSVC_TYPE_ROOM_INFO_USER2 = 25; // 참가자 정보(상세)
+export const SSVC_TYPE_ROOM_INFO_RES = 24; // 대화방 정보 완료
+export const SSVC_TYPE_ROOM_INFO_SIMPLE_REQ = 26; // 대화방 정보 요청
+// export const SSVC_TYPE_ROOM_INFO_ROOM = 22; // 대화방 정보
+// export const SSVC_TYPE_ROOM_INFO_USER = 25; // 참가자 정보(상세)
+export const SSVC_TYPE_ROOM_INFO_SIMPLE_RES = 27; // 대화방 정보 완료
+export const SSVC_TYPE_ROOM_UPD_REQ = 31; // 대화방 변경 요청
+export const SSVC_TYPE_ROOM_UPD_RES = 32;
+export const SSVC_TYPE_ROOM_INFO_UPD_REQ = 33; // 대화방 정보 변경 요청
+export const SSVC_TYPE_ROOM_INFO_UPD_RES = 34; // 대화방 정보 변경 응답
+export const SSVC_TYPE_ROOM_FONT_UPD_REQ = 35; // 대화방 옵션 변경 요청
+export const SSVC_TYPE_ROOM_FONT_UPD_NOTI = 36; // 대화방 옵션 변경 알림
+export const SSVC_TYPE_ROOM_FONT_UPD_RES = 37; // 대화방 옵션 변경 응답
+export const SSVC_TYPE_ROOM_DEL_REQ = 41; // 대화방 삭제 요청
+export const SSVC_TYPE_ROOM_DEL_RES = 42;
+export const SSVC_TYPE_ROOM_EXIT_REQ = 51; // 퇴장 요청
+export const SSVC_TYPE_ROOM_EXIT_RES = 52;
+export const SSVC_TYPE_ROOM_EXIT_NOTI = 53;
+
+export const SSVC_TYPE_ROOM_EXIT_ALL_REQ = 61; // 전체 대화방 퇴장 요청
+export const SSVC_TYPE_ROOM_EXIT_ALL_RES = 62; // 전체 대화방 퇴장 응답
+
+export const SSVC_TYPE_ROOM_EXIT_FORCING_REQ = 54; // 대화상대 강퇴 요청
+export const SSVC_TYPE_ROOM_EXIT_FORCING_NOTI = 55; // 대화상대 강퇴 알림
+export const SSVC_TYPE_ROOM_EXIT_FORCING_RES = 56; // 대화상대 강퇴 응답
+export const SSVC_TYPE_ROOM_USER_STATUS_REQ = 71; // 대화상대 오프라인 체크 요청
+export const SSVC_TYPE_ROOM_USER_STATUS_RES = 72; // 대화상대 오프라인 체크 응답