数据同步，用于PIM 的数据同步，包括手持设设备和PC机，移动设备同服务器之间的数据同步-data synchronization, used for PIM, support data synchronization a movable device (eg.handset and PC) between server.

* This library implements the following protocols: * * - SyncML 1.0 Data Synchronization Protocol * - SyncML 1.1 Data Synchronization Protocol * - OMA DS 1.1 * - OMA DS 1.2 * * The following transports are supported: * * -