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Softswitch Framework

The Aricent Softswitch Framework solution from Aricent is an innovative software platform that allows developers to target Class 4 and Class 5 switch replacement markets as well as wireless markets through a single build. The Softswitch Framework provides multiple services support for voice, video and data for both fixed and mobile Networks, and meets 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.

Using the Aricent Softswitch Framework’s distributed and de-coupled architecture is abstracted from call control giving developers gain the flexibility to rapidly and cost-effectively incorporate both proprietary and standard features.

Aricent’s Companion Lifecycle Services

The majority of Aricent’s products are delivered with tailored combinations of our Lifecycle Services, including Global Innovation and Design, Product Development, Testing and Certification, Network Engineering, Maintenance and Support, and Business Operations and Systems Integration. Aricent’s engineers and consultants have successfully completed thousands of services engagements globally using flexible delivery models ranging from on-site to off-shore. Aricent’s services offer deep communications domain expertise, cost and time efficiencies, quick ramp up and contemporary commercial engagement models including end-to-end commitments.

Aricent Softswitch Framework

Aricent’s Softswitch Framework conforms to TIPHON distributed gateway architecture. It supports a wide variety of signaling protocols (including SS7, R1/R2 and ISDN) and has the potential to incorporate GR-303 and V5.2. The Softswitch Framework can control media remotely through MEGACO and MGCP.

The Aricent Softswitch Framework is offered both as a product and as 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.

Softswitch Configuration

The design of Aricent’s Softswitch Framework enables easy deployment in the network. It provides the flexibility to configure all external network elements such gatekeeper, media gateway, signaling gateway, and application server. 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.

Architecture

  • Services targeted – address translation, routing, IVR, charging, emergency, network-based, web-based, third-party call handling
  • 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

 

Features

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.

 

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
  • Service Interface for:
    • PARLAY and JAIN
    • AIN and INAP
    • SIP
  • IN CS2 architecture
  • Common definition to build:
    • Embedded services (local)
    • Enhanced services (remote) like 8YY, 9YY, etc.
  • Commonly used Class 4 and Class 5 services support in-built
  • Supports services to be accessed from the gatekeeper
  • Bearer control to support multiple gateway control protocols
  • Services targeted - address translation, routing, IVR, charging, emergency, network based, third party call handling web based
  • Architecture independent of signaling -support for SIP, H.323, SS7, ISDN, R2 and POTS ensured
  • Platform independence
  • SNMP manageability

CLASS 4 Services Support

  • Feature Group B, C and D
  • Real time CDR
  • Incoming trunk group screening capability
  • Carrier selection
  • Routing policies (time of day, priority, etc.)
  • Regulatory services

E911 Emergency Services Support

  • Legal intercept

60+ CLASS 5 Services

  • Calling name delivery
  • Calling ID delivery on call waiting
  • Automatic callback
  • Visual MWI
  • Customer originated trace
  • Three-way calling
  • Distinctive ringing
  • Speed calling
  • Telemetry call
  • Do not disturb
  • Call forwarding no answer
  • Local number portability

Deliverables

  • Source code for the Softswitch
  • OS Wrappers for Sun Solaris, VxWorks
  • User manual
  • Application Programmers Interface
  • Release notes
  • Warranty and optional annual support plans
  • Training and on-site consultancy
  • Turnkey integration and porting services