- ResponsePacket.DisconnectionResponse.DestinationChannel = ChannelData->RemoteNumber;
- ResponsePacket.DisconnectionResponse.SourceChannel = ChannelData->LocalNumber;
+ ResponsePacket.DisconnectionResponse.DestinationChannel = (ChannelData != NULL) ? ChannelData->RemoteNumber : 0;
+ ResponsePacket.DisconnectionResponse.SourceChannel = (ChannelData != NULL) ? ChannelData->LocalNumber : 0;