构建更加开放的移动互联网

随着HSPA+等网络的部署,移动互联网业务将进一步丰富,移动通信与互联网将会融合出更大的产业。文章探讨移动互联网的现状、发展趋势,并对运营商部署移动互联网业务提出了相关建议。     

NEAX61S交换机的WAC业务实现方法

介绍了广域虚拟用户交换机（WAC）业务的概念，方案，实施方法，并讲解了NEAX61S交换系统实现本地网WAC业务的原理，业务流程，参考数据等等。     

Synthesis,Biological Evaluation,WAC and NMR Studies of S‐Galactosides and Non‐Carbohydrate Ligands of Cholera Toxin Based on Polyhydroxyalkylfuroate Moieties

The synthesis of several non‐carbohydrate ligands of cholera toxin based on polyhydroxyalkylfuroate moieties is reported. Some of them have been linked to D ‐galactose through a stable and well‐tolerated S‐glycosidic bond. They represent a novel type of non‐hydrolyzable bidentate ligand featuring galactose and polyhydroxyalkylfuroic esters as pharmacophoric residues, thus mimicking the GM1 ganglioside. The affinity of the new compounds towards cholera toxin was measured by weak affinity chromatography (WAC). The interaction of the best candidates with this toxin was also studied by saturation transfer difference NMR experiments, which allowed identification of the binding epitopes of the ligands interacting with the protein. Interestingly, the highest affinity was shown by non‐carbohydrate mimics based on a polyhydroxyalkylfuroic ester structure.     

智能网WAC业务的实现

介绍了智能网ＷＡＣ业务的概念及呼叫流程,详细说明了通过智能网实现ＷＡＣ业务的具体方法,并总结了在实现过程中交换侧、智能网端应注意的问题以及目前ＷＡＣ业务还存在的不足。     

智能网WAC业务的实现

介绍了智能网WAC业务的概念及呼叫流程，详细介绍了通过智能网实现WAC业务的具体方法，并总结了在实现过程中交换侧、智能网端应注意的问题以及目前WAC业务存在的不足。     

Centrex的特点及应用

介绍Centrex特点、实现方式及补充业务。