diff --git a/code/API_definitions/BYON-CallHandling-Service.yaml b/code/API_definitions/BYON-CallHandling-Service.yaml
index ae7182c..1916440 100644
--- a/code/API_definitions/BYON-CallHandling-Service.yaml
+++ b/code/API_definitions/BYON-CallHandling-Service.yaml
@@ -46,6 +46,15 @@ paths:
                 sdp: "v=0\r\no=- 8066321617929821805 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\nm=audio 42988 RTP/SAVPF 102 113\r\nc=IN IP6 2001:e0:410:2448:7a05:9b11:66f2:c9e\r\nb=AS:64\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:1645903805 1 udp 2122262783 2001:e0:410:2448:7a05:9b11:66f2:c9e 42988 typ host generation 0 network-id 3 network-cost 900\r\na=ice-ufrag:4eKp\r\na=ice-pwd:D4sF5Pv9vx9ggaqxBlHbAFMx\r\na=ice-options:trickle renomination\r\na=mid:audio\r\na=extmap:2 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=sendrecv\r\na=rtcp-mux\r\na=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:Xm3YciqVIWFNSwy19e9MvfZ2YOdAZil7oT/tHjdf\r\na=rtpmap:102 AMR-WB/16000\r\na=fmtp:102 octet-align=0; mode-set=0,1,2; mode-change-capability=2\r\na=rtpmap:113 telephone-event/16000\r\n"
               clientCorrelator: fda6e26d-e7c8-4596-870c-c083c0d39b2c
       responses:
+        '201':
+          description: Created
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/VvoipSessionInformation'
+              examples:
+                SessionCreated:
+                  $ref: '#/components/examples/exVSIResponse'
         '400':
           $ref: '#/components/responses/Generic400'
         '403':
@@ -153,9 +162,24 @@ paths:
                 $ref: '#/components/examples/exMT180'
               MT200:
                 $ref: '#/components/examples/exMT200'
+              Hold:
+                $ref: '#/components/examples/exMTHold'
+              Resume:
+                $ref: '#/components/examples/exMTResume'
       responses:
         '200':
-          $ref: '#/components/responses/Generic200'
+          description: Updated the session status (with SDP data)
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ReceiverSessionStatus'
+              examples:
+                Hold:
+                  $ref: '#/components/examples/exMTHold'
+                Resume:
+                  $ref: '#/components/examples/exMTResume'
+        '204':
+          description: Updated the session status (no content)
         '401':
           $ref: '#/components/responses/Generic401'
         '403':
@@ -202,6 +226,7 @@ components:
         vvoipSessionId:
           type: string
           description: The VVOIP session ID created by WebRTC Gateway. The vvoipSessionID shall not be included in POST requests by the client, but must be included in the notifications from the WebRTC GW to client.
+          example: 0AEE1B58BAEEDA3EABA42B32EBB3DFE07E9CFF402EAF9EED8EFAAF209EE52FD0BECC5B7CDE645F50DE7D
     SessionInvitationNotification:
       required:
         - originatorAddress
@@ -291,6 +316,7 @@ components:
           $ref: '#/components/schemas/Address'
     SessionStatus:
       type: string
+      description: Provides the status of the VVOIP session. During the session creation, this attribute SHALL NOT be included in the request.
       enum:
         - Initial
         - InProgress
@@ -351,22 +377,6 @@ components:
         - status
         - code
         - message
-    ObjectResponse:
-      type: object
-      properties:
-        status:
-          type: integer
-          description: HTTP status code returned created
-        code:
-          type: string
-          description: Code given to this created
-        body:
-          type: object
-          description: Response Object
-      required:
-        - status
-        - code
-        - body
     Address:
       type: string
       description: Sender or Receiver address
@@ -480,6 +490,18 @@ components:
               telephone-event/16000\r\na=
 
               ptime:20\r\n"
+    exMTHold:
+      value:
+        ReceiverSessionStatus:
+          status: Hold
+          answer:
+            sdp: "v=0\r\no=- 4576312012535546667 4 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\nm=audio 47510 RTP/SAVPF 102 113\r\nc=IN IP6 2001:e0:410:243a:a344:cee7:7b39:bb1e\r\nb=AS:64\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:3108871805 1 udp 2122262783 2001:e0:410:243a:a344:cee7:7b39:bb1e 47510 typ host generation 0 network-id 3 network-cost 900\r\na=ice-ufrag:47Nx\r\na=ice-pwd:ln3CttOSkObcQ7A0tYO1LXqy\r\na=ice-options:trickle renomination\r\na=mid:audio\r\na=extmap:2 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=sendrecv\r\na=rtcp-mux\r\na=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:ruAnBNYnTJqDVZAIJV59VpQ5DxGI6tMX9h9kkHSz\r\na=rtpmap:102 AMR-WB/16000\r\na=fmtp:102 octet-align=0; mode-set=0,1,2; mode-change-capability=2\r\na=rtpmap:113 telephone-event/16000\r\na=ptime:20\r\n"
+    exMTResume:
+      value:
+        ReceiverSessionStatus:
+          status: Resume
+          answer:
+            sdp: "v=0\r\no=- 4576312012535546667 4 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\nm=audio 47510 RTP/SAVPF 102 113\r\nc=IN IP6 2001:e0:410:243a:a344:cee7:7b39:bb1e\r\nb=AS:64\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:3108871805 1 udp 2122262783 2001:e0:410:243a:a344:cee7:7b39:bb1e 47510 typ host generation 0 network-id 3 network-cost 900\r\na=ice-ufrag:47Nx\r\na=ice-pwd:ln3CttOSkObcQ7A0tYO1LXqy\r\na=ice-options:trickle renomination\r\na=mid:audio\r\na=extmap:2 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=sendrecv\r\na=rtcp-mux\r\na=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:ruAnBNYnTJqDVZAIJV59VpQ5DxGI6tMX9h9kkHSz\r\na=rtpmap:102 AMR-WB/16000\r\na=fmtp:102 octet-align=0; mode-set=0,1,2; mode-change-capability=2\r\na=rtpmap:113 telephone-event/16000\r\na=ptime:20\r\n"
   securitySchemes:
     BearerAuth:
       type: http
@@ -555,9 +577,3 @@ components:
             status: 503
             code: UNAVAILABLE
             message: Service unavailable
-    Generic200:
-      description: Updated
-      content:
-        application/json:
-          schema:
-            $ref: '#/components/schemas/ReceiverSessionStatus'