APN type

TYPE_MOBILE （APN default ）

The Default Mobile data connection. When active, all data traffic will use this connection by default。

 

TYPE_MOBILE_DUN （dun）

A DUN-specific Mobile data connection. This connection may be the same as TYPE_MOBILE but it may be different. This is used by applicaitons performing a Dial Up Networking bridge so that the carrier is aware of DUN traffic. It may coexist with default data connections。

 

TYPE_MOBILE_SUPL (SUPL)

A SUPL-specific Mobile data connection. This connection may be the same as TYPE_MOBILE  but it may be different. This is used by applications needing to talk to the carrier's Secure User Plane Location servers for help locating the device. It may coexist with default data connections.

 

TYPE_MOBILE_MMS (MMS)

An MMS-specific Mobile data connection. This connection may be the same as TYPE_MOBILE  but it may be different. This is used by applications needing to talk to the carrier's Multimedia Messaging Service servers. It may coexist with default data connections.

 

TYPE_MOBILE_HIPRI (HIPRI)

A High Priority Mobile data connection. This connection is typically the same as TYPE_MOBILE but the routing setup is different. Only requesting processes will have access to the Mobile DNS servers and only IP's explicitly requested via requestRouteToHost(int，int) will route over this interface if a default route exists.