37866601 PTCL Internship Report

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1 “In the name of ALLAH, most Gracious, most Compassionate” INTERNSHIP REPORT ON PTCL Pakistan Telecommunication Company Limited, NGN SOFTSWITCH SUBMITTED BY: MUHAMMAD YOUSUF HASNAIN SUBMITED TO: SIR KHAKOMAL

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In the name of ALLAH, most Gracious, most Compassionate

INTERNSHIP REPORT ON PTCL Pakistan Telecommunication Company Limited,

NGN SOFTSWITCH

SUBMITTED BY: MUHAMMAD YOUSUF HASNAIN

SUBMITED TO: SIR KHAKOMAL

PTCL & Huawei Contribution Today:

In February 2004, huawei Technologies Co,Ltd (Huawei) solely constructed the CDMA core network for PTCL, which covers most rural areas of Pakistan and solves the problem of universal service. The CDMA network provides high-quality voice and data services, Value-added services such as pre-paid charging telephone, wireless public telephone and short message services , and differentiated services.

Huaweis anterior outstanding services contributed to the second cooperation between Huawei and PTCL in December 2004. As the only supplier for the CDMA core network of PTCL, huawei provides the mobile soft switchSolution to construction the largest CDMA soft switch network in the world and also supplies the third generation intelligent network services platform. The network capacity approaches 3,000,000 lines after optimization and reconstruction of the conventional CDMA switching network.

With distributed network and centralized management capability, the CDMA mobile soft switch optimizes the existing network of PTCL, and solves the problem of imbalance in distribution of users and traffic, decreasing CAPEX and OPEX while enhancing the network quality.

The Huawei CDMA soft switch supports multiple bearer modes such as IP bearer adopted between soft switches and TDM bearer adopted between soft switches and other traditional devices based on actual networking conditions in construction of the soft switch network of PTCL, Featuring flexible networking capability, The Huawei mobile soft switch can easily meet complex networking requirements, enabling PTCL to reconstruct the network with no impact on existing services and realize ALL-IP networking smoothly.

According to the development situation of Pakistans wireless telecommunication, PTCL made huge efforts to develop wireless public telephone services with high ARPU, Based on in-depth researches and analysis of customer demands, Huawei intelligent network for centralized control. The solution provided by huawei features high security and efficiency, real time alert and real-time control, it helps PTCL gain market competitive edges and with fever of high-end customers, which substantially increases and enhances the e operators brand image.

Introduction To NGN :

Thenext-generation network(NGN) is body of key architectural changes intelecommunicationcoreandaccess networks. The general idea behind the NGN is that one network transports all information and services (voice, data, and all sorts of media such as video) by encapsulating these intopackets, similar to those used on theInternet. NGNs are commonly built around theInternet Protocol, and therefore the termall IPis also sometimes used to describe the transformation toward NGN.

A next-generation network (NGN) is apacket-basednetworkwhich can provide services including Telecommunication Services and able to make use of multiplebroadband,quality of Service-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies. It offers unrestricted access by users to different service provid ers. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users.

NGN Definition:The term "Next Generation Networks" is wide-ranging and is interpreted variously by the broad variety of players involved in the communication business.

Benefits Of Next Generation Networks:

There are three principal benefits associated with next-generation network:I. Greater flexibility, in Terms of the technology and services on offerII. Access to a range of new applications specification to next-generation networks.III. And most importantly, a significant reduction in the cost of running and maintaining separate voice, data and internet services.

Key characteristics of Next Generation Networks (NGNs):

The demands on the telecommunications networks today and in the future are reflected clearly inthe societalchanges aroundthe world.Customers ofall serviceshave historically wanted more for less, more flexibility, and sometimes just more! This can certainly be seen inthe rapid growth ofmobile network usage.The mentality ofanytime, anywhere is becoming prevalent around the world the primary differences between regions being largely amatter of degree.Also, customers are seeing innovationacross all areas ofconsumer goods andservices withjust intime services tailored totheir specific needs andtimeframes.These too willbe keydemands placed upontelecom-muni cations networks as they evolve. Key characteristics of NGNs are:

Geographic transparency: boundaries are disappearing and economic benefits independent of service density must be realized

Transport efficiencies: transport costs (price/bit) are continuously declining, NGN smust share these efficiencies for both bearer and signaling traffic

Internet technology economics: leverage services and service delivery through the Internet, as well as the silicon economics of Internet hardware (servers, etc.)As memory and processor Price/performance improve Old World to New World interoperability: existing PSTN infrastructure and its associated investment must be fully utilized.

Legacy Network:The term Legacy Network is a name of a popular and famous networking company as well that is operating worldwide to provide different solutions to the network problems that arise in the networking world and along with that, the company also produces new devices for the networks, however, this article does not deal with that company, that is, this article deals with this term with reference to the networking world, not with some company or any other perspective.The term legacy is used to define a set of equipment, computer system, technology, method and applications which are obsolete and are no longer being produced by the company, but are still being used by an individual or an organization. From this definition you can guess that what the term legacy network means, however, the exact definition of the term is given in the following material.The term legacy network in the networking world has two meanings attached to it.Firstly the tem legacy network is used to describe a network that is present in an organization, and is still being used by it, but is based on older and outdated protocols. The best example of such network is a network that is not based on the IP or TCP/IP protocols, like the IPX or the SNA are considered the legacy networks and those companies who still want to use these networks with the IP based networks have to install or make use of certain other new features which enables this old network to work with the newer one, however, even after all this effort they are still called a legacy network.Secondly the term can be used to describe the wireless networks that are based on the older 802.11x standards, which were made or announced before the 802.11n standard. The example of these legacy standards are 802.11a, 802.11b and 802.11g.

Introduction To Soft-Switch: Short forsoftwareswitch, a soft switch is anAPIthat is used to bridge a traditionalPSTNandVoIPby linking PSTN toIPnetworks and managing traffic that contains a mixture of voice, fax, data and video. Soft switches are able to process the signaling for all types ofpacketprotocols. Soft switch is a software-basedswitchingplatform, which is opposed to traditional hardware-based switching center technology. Soft switches also are based onopen systems, another difference between them and traditionalproprietary hardware switching systems.Soft switch is also calledmedia gateway controller, call agentandgatekeeper.

SOFT-SWITCH SLAVE

MASTER SOFT-SWITCH

Classes Of Soft-Switches:VoIP Soft switches are subdivided into two classes. Class 4 soft switches and Class 5 soft switches.Soft switches used for transit VoIP traffic between carriers are usually Called class 4 soft switches. Analogous with otherClass 4 telephone switches, the main function of the class 4 soft switch is the routing of large volumes of long distance VoIP calls. The most important characteristics of class 4 soft switch are protocol support and conversion,trans coding,calls per secondrate, average time of one call routing, number ofconcurrent calls.Class 5 soft switches are intended for work with end-users. These soft switches are both for local and long distance telephony services. Class 5 soft switches are characterized by additional services for end-users and corporate clients such asIP PBXfeatures, call center services,calling cardplatform, types of authorization, and other features similar to otherClass 5 telephone switches.

C5 HUAWAI DUAL SOFT-SWITCH SOUTH WITH MEDIA GATEWAVS CONNECTION AT PTCL:

HYD JEEJAT MAAHOSOITAL MSAGG.KOHSAR MSAG

HYD PUBLIC SCHOOL MSAGKHI STEEL TOWN MSAGOGDCK COLONYGHOTKI MSAGSUK ANGRO DEHRKI MSAGSUK.FFC MIRPURKHAS MSAGMLTGTMGHYD HIGH SCHOOLKHI_ALI INDUSTRY SLAVE C5 SS HYDERABADIP CORE NETWORKMASTER C5 SS KARACHIJUNIOR CITY MSAGHYD SINDH MUSEM MASGBURANI NAGAR MSAGHYD SEARAT UN NABI CHOWK LAFTI MSAHHYD G.O.R MSAGZEAL PAK HYD MSAG