1. 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

2. 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.

3. 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

4. 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

5. 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)

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

7. 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

8. 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

9. 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

10. 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.

11. 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……

12. 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.

13. SoftSwitch as a Class 5 Solution

14. Soft Switch as a Class 4

15. 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.

16. 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

17. 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.