The Softswitch Framework solution from Aricent
offers an innovative software
architecture to target Class 4 and Class 5 replacement
markets as well as Wireless markets through a single
build. This offering is targeted towards equipment manufacturers
and enables them to reduce time to revenue.
Softswitch
Framework Context
Softswitch
Framework Block
Aricent's Softswitch provides Multiple Services
Support for Voice, Video and Data for both Fixed and
Mobile Networks. The Aricent solutions meets the carrier
class requirement of high density, high availability
and reliability. It can be easily integrated into different
system architectures, to suit a variety of customer
requirements.
The distributed and de-coupled architecture of the
Softswitch offers the flexibility to incorporate both
proprietary and standard features. Aricent Softswitch is
unique, as it has de-coupled service control from call
control, which helps in integrating market-driven features
easily.
Aricent's Softswitch Framework
Aricent's Softswitch conforms to TIPHON
distributed gateway architecture. Softswitch solution
from Aricent supports a wide variety of signaling protocols,
like SS7, R1/R2 and ISDN and has a potential to incorporate
GR-303 and V5.2. Aricent Softswitch can control
media remotely through MEGACO and MGCP.
Softswitch Framework Context in System
Softswitch Configuration
The design of Aricent's Softswitch enables easy deployment
in the network. Aricent Softswitch provides the flexibility
to configure all external network elements like Gatekeeper,
Media Gateway, Signaling Gateway, Application Server,
etc. Policies can be configured by customizing Routing,
Service Control and Address Translation. Further, product
related configurations for initialization, provisioning
and redundancy are available through open APIs.
Softswitch
Service Architecture
Services targeted – address translation, routing,
IVR, Charging, Emergency, Network based, third party
call handling, web based
Service Interface provides support for – CLASS
services/supplementary services, IN services, SIP
based
Architecture independent of signaling, but support
for SIP, H.323, SS7, ISDN, R2, POTS ensured
Aricent's Softswitch Framework : Functions
The Aricent Softswitch is offered both as a product and
a software framework with source license. Aricent has already
integrated the Softswitch into different product
architectures and offers its services in integrating
and porting the Softswitch solution onto the target.
Services
Low-level call management APIs for INAP interfaces
High-level call management APIs for Parlay adapter
SIP interface to Application server
CLASS services hosted natively
Legacy and Enhanced services supported
Softswitch Framework Functional Block
Interworking Call Control
IN CS2 – AIN 0.3 BCSM based call control
Signaling Adaptations Supporting diverse SCN and
packet protocols
Enables easy integration of new signaling protocols
PSTN Interfaces
SS7 termination (ANSI or ITU-T) either through
external SG or direct
Dual-seizure, reset, group blocking/unblocking
supported
Supports third-party pause and re-routing
CAS R1/R2 supported on PSTN & H.323 v2 on packet
network
ISDN Q.931 interface supported
Packet Interfaces
H.323 subscriber and trunk interface
SIP subscriber and SIP-T trunk interface
MGCP (RFC 2705) gateway interface
MEGACO/H.248 gateway interface
Bearer Control
H.248/MGCP based Gateway Control
Ability to manage multiple transactions
Enabling media control for packet-TDM inter-working
Ability to manage various gateway types (Access,
Trunking and Residential)
Resource Management
Route Information maintained
SCN and PDN terminations and associated data maintained
Resource allocation, de-allocation and maintenance
Local and External Address Translations supported
Single point routing and distribution of messages
to multiple MGs
