Class 5 Services
[ specifications ]

Unified Network Architecture™
Convergent Networks’ Unified Network Architecture allows switching and any-to-any interworking between high-speed broadband networks and traditional circuit-switched networks. With support for primary line services, as well as regulatory, CLASS and custom calling features, the solution is a highly cost-effective, and extremely scalable Class 5 alternative or enhancement.

The Unified Network Architecture consists of the PacketMatrix Controller (PMC), the ICS2000™ media gateway, the ICSG™ signaling gateway, and the Aladdin™ management system.

The PMC holds routing and service intelligence for a network of ICS2000 media gateways, acting as a mediation point between IP applications and AIN applications, and a peering point to other next generation call management and application elements in the network. It also hosts additional enhanced Class 5 subscriber features such as Speed Calling, Call Acceptance and Call Block.

The ICS2000 media gateway delivers traditional CLASS features, such as call forwarding, call waiting, caller ID and voice mail, in addition to regulatory requirements such as E911 and CALEA. The ICS2000 media gateway provides flexible voice call interworking between IP, ATM and TDM circuits for both trunking and access applications, and supports up to 24,192 protected calls per shelf.

The ICSG provides consolidated SS7 signaling support for a network of ICS2000 media gateways and PMCs, while Aladdin provides standards-based element management and billing mediation.

Class 5 Applications
The ICS2000 acts as both a packet trunking gateway, switching packet-based voice calls originating from customer-located IP or ATM-based equipment to the PSTN, and as an access gateway, supporting GR-303 to deliver features to traditional DLC based access networks. An open, SIP-based architecture supports enhanced voice applications through third party application servers, such as carrier hosted IP PBX service, messaging, conferencing and IP call center.

• POTS Subscribers - As carriers begin to 0move towards a next generation architecture and away from legacy Class 5 switches, it is vital that traditional services, such as 2-wire POTS and T-1 based services, are preserved. To address interoperability with legacy TDM Digital Loop Carriers (DLCs), the ICS2000 broadband switch facilitates carriers’ migration to packet-based infrastructures with a GR-303 IDT interface, allowing carriers to continue serving POTS subscribers seamlessly. In addition, the ICS2000 provides added flexibility for carriers with next-generation broadband DLCs by interfacing directly to those devices via broadband packet interfaces, rather than TDM.
  
• Advanced VoDSL - For carriers targeting the residential and small-to-medium-size business market, the NEBS Level 3-certified ICS2000 switches ATM-based voice calls originating from customer-located xDSL Integrated Access Devices (IADs) to the PSTN or a broadband packet backbone network. Taking advantage of the multiplexing efficiencies of the ICS2000’s high-density Digital Signal Processor (DSP) feature modules, carriers can deploy extremely low-cost IADs at the customer premise to efficiently concentrate high-speed voice and data services over bandwidth-constrained local loops.
  
• Cable Telephony - The Unified Network Architecture also supports cable telephony applications, enabling traditional and enhanced voice services over existing hybrid fiber-coaxial systems.

Extreme Density and Performance
A single ICS2000 chassis can switch up to 24,192 protected calls in a fully redundant configuration, and by stacking three ICS2000s in a standard seven-foot rack, more than 72,000 IP calls can be supported. Further, a single ICS2000 can scale to more than 16,000 non-blocking simultaneous Class 5 users (over 80,000 subscriber lines with 5:1 oversubscription).

Multiple ICS2000 chassis can be supported by a single ICSG signaling gateway with a single point code supporting up to 500,000 non-blocking DS0s. For maximum scalability, these ICS2000s can then be interconnected to form a virtual switch over an IP or ATM-based network. When leveraging the distribution of call control between the ICS2000 media gateway and ICSG signaling gateway in tandem and trunking applications, SS7 signaling capacity is designed to scale up to 10 million Busy Hour Call Attempts (BHCA).

Carrier-Grade Availability and Redundancy
The ability to configure the ICS2000 with economical 1:N interface redundancy, as well as full common equipment redundancy, provides a highly reliable platform from which to provision services. Coupled with hot standby operation across all interfaces with stable call presentation and 99.9999% availability, the NEBS-certified ICS2000 media gateway and ICSG signaling gateway provide carriers with the telephony-grade reliability required of today’s public networks.

Specifications

Protocol Standards
PSTN: SS7 ISUP, TCAP, GR 303, GR 317, GR 444, GR 394, E911, OSDA, ISDN, PRI, MF, T1 CAS
IP: SIP, RTP, DiffServ*, MPLS*
ATM: UNI 4.0, AAL1 SVCs, AAL2 SVCs

Call Processing and Routing Features
Multi-service Interworking: PSTN, IP, ATM
PSTN/IN Routing: Refer to PacketMatrix Controller datasheet

Voice Processing Features
Echo Cancellation: G.168 up to 128ms tail delay
Voice codecs: G.711, G.726, G.729 a/b*, G.723.1*
Silence suppression, tones and announcements, test lines, E911 CAMA, tone generation/detection
Class 5 Services: Caller ID, call forwarding variable, call forwarding fixed, call forwarding busy/no answer, call waiting w/cancel, speed calling 8/30, 3-way calling, call return, call transfer, ring plus, anonymous call rejection,
CIDS, selective call acceptance, call block, repeat dialing*, call selector*, call forwarding series fixed*, customer originated trace*, CNAM*
CALEA*

SS7 Protocols
ANSI ISUP,SCCP/TCAP AIN 0.1,MTP Layers,A,E or F-links,SS7 over IP (Sigtran,SCTP)*

*Future releases.

For more information, call (978) 323-3300 or e-mail info@convergentnet.com.

Application Notes:

Packet Tandem Applications

Class 5 Services

Enhanced Voice Services with SIP

PRI and Business Voice Services