@Shally : I researched on very much tutorial. If you use Dataservice without auto synchronization, you can use the AMF Channel normally, to using it you have to config services-config.xml and data-management-config.xml file as below :
services-config.xml:
<channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel">
<endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/amf" class="flex.messaging.endpoints.AMFEndpoint"/>
<properties>
<polling-enabled>false</polling-enabled>
</properties>
</channel-definition>
data-management-config.xml :
<default-channels>
<channel ref="my-rtmp"/>
<channel ref="my-amf" />
</default-channels>
Thanks,
Dang Thanh