diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
index 9771c582..73e97e77 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
@@ -901,9 +901,35 @@ public class InviteRequestProcessor extends SIPRequestProcessorParent implements
 
     public void inviteFromDeviceHandle(SIPRequest request, String requesterId, String channelId) {
 
+        String realChannelId = null;
+
         // 非上级平台请求，查询是否设备请求（通常为接收语音广播的设备）
         Device device = redisCatchStorage.getDevice(requesterId);
-        AudioBroadcastCatch broadcastCatch = audioBroadcastManager.get(requesterId, channelId);
+        // 判断requesterId是设备还是通道
+        if (device == null) {
+            device = storager.queryVideoDeviceByChannelId(requesterId);
+            realChannelId = requesterId;
+        }
+        if (device == null) {
+            // 检查channelID是否可用
+            device = redisCatchStorage.getDevice(channelId);
+            if (device == null) {
+                device = storager.queryVideoDeviceByChannelId(channelId);
+                realChannelId = channelId;
+            }
+        }
+
+        if (device == null) {
+            logger.warn("来自设备的Invite请求，无法从请求信息中确定所属设备，已忽略，requesterId： {}/{}", requesterId, channelId);
+            try {
+                responseAck(request, Response.FORBIDDEN);
+            } catch (SipException | InvalidArgumentException | ParseException e) {
+                logger.error("[命令发送失败] 来自设备的Invite请求，无法从请求信息中确定所属设备 FORBIDDEN: {}", e.getMessage());
+            }
+            return;
+        }
+
+        AudioBroadcastCatch broadcastCatch = audioBroadcastManager.get(device.getDeviceId(), realChannelId);
         if (broadcastCatch == null) {
             logger.warn("来自设备的Invite请求非语音广播，已忽略，requesterId： {}/{}", requesterId, channelId);
             try {
diff --git a/src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java
index 4336664f..4d257d47 100644
--- a/src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java
@@ -498,7 +498,7 @@ public class PlayServiceImpl implements IPlayService {
                 // 检查是否有y字段
                 if (ssrcIndex >= 0) {
                     //ssrc规定长度为10字节，不取余下长度以避免后续还有“f=”字段 TODO 后续对不规范的非10位ssrc兼容
-                    String ssrcInResponse = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
+                    String ssrcInResponse = contentString.substring(ssrcIndex + 2, ssrcIndex + 12).trim();
                     // 查询到ssrc不一致且开启了ssrc校验则需要针对处理
                     if (ssrcInfo.getSsrc().equals(ssrcInResponse)) {
                         return;