Using PARLAY APIs Over a SIP System in a Distributed Service Platform for Carrier Grade Multimedia Services

The implementation of new mobile communication technologies developed in the third generation partnership project (3GPP) will allow to access the Internet not only from a PC but also via mobile phones, palmtops and other devices. New applications will emerge, combining several basic services like voice telephony, e-mail, voice over IP, mobility or web-browsing, and thus wiping out the borders between the fixed telephone network, mobile radio and the Internet. Offering those value-added services will be the key factor for success of network and service providers in an increasingly competitive market. In 3GPP's service framework the use of the Parlay APIs is proposed that allow application development by third parties in order to speed up service creation and deployment. 3GPP has also adopted SIP for session control of multimedia communications in an IP network. This article proposes a mapping of SIP functionality to Parlay services and describes a prototype implementation using the SIP Servlet API. Furthermore, an architecture of a Service Platform is presented that offers a framework for the creation, execution and management of carrier grade multimedia services in heterogeneous networks.     

基于IMS的固定和移动业务网络融合研究

基于IMS的网络融合是目前研究的一个热点。从业务网络融合入手,分析了IMS作为固定和移动业务网络融合平台的优点,介绍了IMS的业务生成环境,提出了基于Parlay/OSA的IMS业务网络融合方案,并对方案中的若干问题作了较为详细的分析。     

基于白盒测试的Parlay API接口测试方法设计

主要介绍了Parlay应用服务器的API接口,提出了一个简单的基于白盒测试的自动化测试平台实现方案,并详细介绍了该方案的基本设计思想、总体结构、测试用例的实现方法,以及该平台的工作机制。     

Parlay API在NGN中的应用研究

文中首先对Parlay的体系结构及下一代网络的主要特点进行分析研究,在此基础上对Parlay API在NGN中的应用进行研究。针对传统增值业务开发的缺陷,提出一种利用Parlay API的增强型呼叫处理（ECC）API对NGN的增值业务进行开发的改进方案,并给出了一个基于Parlay API的增值业务开发实例。     

基于IMS的同定和移动业务网络融合研究

基于IMS的网络融合是目前研究的一个热点。从业务网络融合入手，分析了IMS作为固定和移动业务网络融合平台的优点．介绍了IMS的业务生成环境，提出了基于Parlay／OSA的IMS业务网络融合方案，并对方案中的若干问题作了较为详细的分析。     

基于下一代网络的电话名片业务

首先简要描述了OSA／Parlay、应用服务器等相关技术．然后阐述了电话名片业务的设计与实现。并给出了简要测试分析报告。     

Eight salt forms of sulfadiazine

Proton transfer to the sulfa drug sulfadiazine [systematic name: 4‐amino‐N‐(pyrimidin‐2‐yl)benzenesulfonamide] gave eight salt forms. These are the monohydrate and methanol hemisolvate forms of the chloride (2‐{[(4‐azaniumylphenyl)sulfonyl]azanidyl}pyrimidin‐1‐ium chloride monohydrate, C₁₀H₁₁N₄O₂S⁺·Cl⁻·H₂O, (I), and 2‐{[(4‐azaniumylphenyl)sulfonyl]azanidyl}pyrimidin‐1‐ium chloride methanol hemisolvate, C₁₀H₁₁N₄O₂S⁺·Cl⁻·0.5CH₃OH, (II)); a bromide monohydrate (2‐{[(4‐azaniumylphenyl)sulfonyl]azanidyl}pyrimidin‐1‐ium bromide monohydrate, C₁₀H₁₁N₄O₂S⁺·Br⁻·H₂O, (III)), which has a disordered water channel; a species containing the unusual tetraiodide dianion [bis(2‐{[(4‐azaniumylphenyl)sulfonyl]azanidyl}pyrimidin‐1‐ium) tetraiodide, 2C₁₀H₁₁N₄O₂S⁺·I₄²⁻, (IV)], where the [I₄]²⁻ ion is located at a crystallographic inversion centre; a tetrafluoroborate monohydrate (2‐{[(4‐azaniumylphenyl)sulfonyl]azanidyl}pyrimidin‐1‐ium tetrafluoroborate monohydrate, C₁₀H₁₁N₄O₂S⁺·BF₄⁻·H₂O, (V)); a nitrate (2‐{[(4‐azaniumylphenyl)sulfonyl]azanidyl}pyrimidin‐1‐ium nitrate, C₁₀H₁₁N₄O₂S⁺·NO₃⁻, (VI)); an ethanesulfonate {4‐[(pyrimidin‐2‐yl)sulfamoyl]anilinium ethanesulfonate, C₁₀H₁₁N₄O₂S⁺·C₂H₅SO₃⁻, (VII)}; and a dihydrate of the 4‐hydroxybenzenesulfonate {4‐[(pyrimidin‐2‐yl)sulfamoyl]anilinium 4‐hydroxybenzenesulfonate dihydrate, C₁₀H₁₁N₄O₂S⁺·HOC₆H₄SO₃⁻·2H₂O, (VIII)}. All these structures feature alternate layers of cations and of anions where any solvent is associated with the anion layers. The two sulfonate salts are protonated at the aniline N atom and the amide N atom of sulfadiazine, a tautomeric form of the sulfadiazine cation that has not been crystallographically described before. All the other salt forms are instead protonated at the aniline group and on one N atom of the pyrimidine ring. Whilst all eight species are based upon hydrogen‐bonded centrosymetric dimers with graph set R₂²(8), the two sulfonate structures also differ in that these dimers do not link into one‐dimensional chains of cations through NH₃‐to‐SO₂ hydrogen‐bonding interactions, whilst the other six species do. The chloride methanol hemisolvate and the tetraiodide are isostructural and a packing analysis of the cation positions shows that the chloride monohydrate structure is also closely related to these.     

利用OSA/Parlay技术提供即时消息业务的研究

总结了即时消息业务的基本通信机制和相关业务属性,在分析基于OSA/Parlay方式的短消息和基于CAMEL方式的多媒体消息的通信模型的基础上构建了基于OSA/Parlay技术的即时消息通信模型,并讨论了不同方式的消息通信流程.