| 1. | By using datagram service ( udp or wdp ) , wtp provides more reliable transmission service than pure datagram service
Wtp采用数据报服务（ udp或wdp ） ，提供给wsp比纯数据报更可靠的传输服务。 |
| 2. | Wtls ( wireless transport layer security ) of the security layer is optional . it is used between wap application service and datagram service
安全层wtls （ wirelesstransportlayersecurity ）是可选的，它应用于wap应用业务及数据报业务之间。 |
| 3. | Because it is packet - oriented , icmp is an unreliable host - to - host datagram service in a system of interconnected networks , offering no guarantee of delivery
因为icmp是面向包的，所以它在相互连接的网络系统中是不可靠的主机对主机数据报服务，提供无保证的传递。 |
| 4. | Designed as a replacement of udp , wdp provides the same wap datagram service interface as udp . it can use the short message platform when there is no ip traffic
Wdp设计为udp的替代，像udp一样提供相同的wap数据报服务接口，它在下层没有ip承载时可使用短信平台。 |
| 5. | Wtp performs the reliability feature needed by wsp for requestresponse and reliable push operations so as to increase the reliability of datagram service . since it is based on messages , it can serve applications like browse relatively well
Wtp执行wsp需要的可靠性特性，用以请求应答和可靠的push操作，主要用于提高数据包服务的可靠性，是基于消息的，能较好地为浏览等应用服务。 |
| 6. | It is an ordinary datagram service , providing consistent service for the higher layer and general interfaces for the protocol on the higher layer by using the bearer network on the lower layer so as to adapt the higher layer to the lower - layer network . this makes the higher - layer protocol unrelated to the lower - layer bearer network
Wdp是一般数据报服务，使用下层承载为上层提供一致的服务，为上层协议提供通用接口，使其上层适配到指定的下层承载网络中，这使得上层协议可以与下层承载网络无关。 |
