PTCL Training & Development Softswitch… As a SoftSwitch product, SoftX3000 is located at the core control layer of NGN scheme. SoftX3000 acts as a generic Call Controller in the packet-switched network, supports the interworking between PSTN, H.323, SIP, and MGCP domains. SoftX3000 provides H.248 and MGCP based bearer control. In the NGN solution of Huawei, SoftX3000 acts as the core of NGN, interworking with other NGN components through the open network adopting distributed standard protocols. PTCL Training & Development

Location of SoftX3000 SoftX3000 is applicable to the network control layer of NGN and implements call control and connection management of voice, data and multimedia services based on the IP network.

Control Function Of S.Switch SoftSwitch 3G Access AMG IAD Broadband Access PSTN TMG SG PLMN IP Core Network UMG Call control path Talking Path

Next Generation Voice Switching the “Softswitch” concept Soft switches are software-based multi-function network gateways (running under Unix or Windows) that act as interfaces between circuit switched and packet-switched networks

Role of a Softswitch Provides the call control and the Media Gateway control for the NGN The name softswitch is used because many switching functions handled by large monolithic systems in the circuit switched world are instead emulated by software systems. The term Softswitch refers to a Call agent or a Media Gateway Control (MGC)

Media Gateway Control Signaling Role of a Softswitch MGW IP/RTP Media Packets Call Signaling over IP Media Gateway Control Signaling IP Core Softswitch

Softswitch System Architecture Key components of softswitch architecture are: Call agent / Call controller: it performs call control functions Application Server (AS) provides enhanced features which is not available in Softswitch host. Operating Support System (OSS) as network management, billing support, etc. Signaling Gateway (SG) as interface to CCS-7 (STP) Trunk Gateway (TG) as interface to TE or LE of PSTN Access Gateway (AG) as interface to CPE

Softswitch Functions The main functions are: Call control Media gateway access control Protocol processing Routing Authentication Charging Application Programming Interfaces (API) for 3rd party Servers

Softswitch Services Softswitch can be used as an end office (C5 office), tandem office (C4 office), toll office, International gateway office and IN SSP Voice services Basic voice services Supplementary Services IP fax services IP CENTREX services Multimedia services IN services

Softswitch Service Provisioning Basic and Supplementary Services Abbreviated Dialing, Automatic call back, Alarm ring service, Call waiting, Three-way call and Centrex, etc. Traditional IN services 300, 800, Account card service, etc. New Revenue generating services Web 800, Click to dial, Web Service Customization, Synchronization browsing, One Number, Voice Mail, Unified Message (UMS), Short Message. Video and Multi-media services Video phone, multi-media TV conference.

Huawei Softx3000 Softswitch High Capacity & Integration 2,000,000 POTS 2,000,000 V5 Subscribers 2,000,000 SIP Terminals 1,000,000 H.323 Terminals High Performance 16M BHCA Perfect Scalability 150,000 subs / frame and smoothly expansion Fewer power Consumption Power consumption < 4.5KW Legacy Switch SoftX3000 Big Saving of 40% OPEX ! Nodes, Space, Power, Staffs……

Softswitch Networking Solutions Long Distance VoIP Solution with Softswitch + Trunk Gateway configuration for long distance VoIP service. Local VoIP Solutions with Softswitch + Media Gateway, Softswitch+IAD、Softswitch+AccessGateway, Softswitch+Intelligent Terminals for local VoIP and Data services. Flexible access solution for group subscribers such as school, enterprise, government institute depending on network condition and accessing scale.

SoftSwitch as a Class 5 Solution

Soft Switch as a Class 4

Interface and Protocol An interface is the connection point between two adjacent network entities, and a protocol specifies the principles to be followed for information interchanging over such connection points (interfaces) Different protocols are usually used on different interfaces and maybe on the same interface as well.

Soft Switch Interfaces and Protocols MRS IAD AMG TMG SG SIP SIGTRAN H.248 MGCP MGCP/SIP/H.323 MGCP / H.248 EPhone H.323 MML/SNMP NMS FTP/FTAM BC Soft Switch SoftSwitch SS7 PSTN SCP INAP PARLAY APP Server SIP/INAP

SoftX3000 Signaling Classification Signaling transport protocol – Signaling transport layer protocol provides SoftX3000 with signaling transport services. These are MTP (PSTN), INAP (IN), M2UA,M3UA (User adaption layer protocols for MTP2 & MTP3),SCTP etc. Bearer control protocol - is a kind of master/slave protocol used for Media Gateway Controller (MGC) to control Media Gateways (MGs) from external call elements like a Call Agent (SoftX3000). Example is MGCP and H248(MEGACO). Call control protocol – A protocol used to control call setup, connection and termination. The call control protocols used in SoftX3000 are ISUP of SS7 & for switched circuit network, SIP and H.323 for call control in packet switched networks.