TDM Voice / POTS

Zhone maintains legacy TDM voice / POTS while enabling new broadband services

“We began using MALC for broadband ADSL and SHDSL services, but have expanded its use for basic TDM POTS as well in those areas voice is needed. The flexibility of MALC as a full service BLC to meet our service needs as they arise is very important to SRT.”

—Steve Lysne, CEO and GM, SRT Communications

• Related Products
• MALC MSAP Datasheet
• Outdoor Enclosures
• More Information
• Emergency Standalone (ESA)

Application

Residential POTS is still core revenue service to ILEC’s as well many CLEC’s. As long as Class 5 switches have an amortized life in the network, TDM POTS services will be offered. The ability to deliver core lifeline POTS and at the same time implement residential broadband data and/or video services (triple play) is a basic need for most service providers offering POTS services today.

POTS services must meet certain standard criteria related to quality of service and the access equipment that supports these services must therefore meet those requirements. Redundancy and the ability to deliver dialtone when a network failure occurs are some of the core reuirements for POTS services. In addition to support the worldwide POTS market the access equipment must support GR303 and V5.2 interfaces to the voice switches.

Solution: MALC

As a NGDLC the MALC supports traditional TDM based voice with a complete range of broadband services. As a Broadband Loop Carrier (BLC), MALC supports the full range of VoIP capabilities enabling easy migration to VoIP services at the right time, while not stranding existing investments. Emergency Standalone (ESA) feature enables voice calls to be connected to switches when a connection is cut or disabled allowing operators to provide for emergency communication services.

In lieu of having to overlay existing POTS DLC in cabinets with DSL DSLAM’s, the MALC let’s a carrier combine POTS and broadband from one shelf. Carriers can maintain their core POTS business while expanding broadband services and adding IPTV, VoIP and IP multimedia services using one platform. The high density port design of MALC allows any combination of POTS and broadband to be delivered from a single shelf with much higher capacity than typically available in a separate NGDLC and DSLAM together. For instance, MALC 100, MALC 319, and MALC 719/723 all offer a high density 48 port ADSL2+/POTS combo card.

MALC Features

• Class 5 Switch Interfaces: MALC supports both North American GR-303 and international V5.2 Class 5 switch interfaces. MALC connects directly to the Class 5 Switch and supports multiple IG’s.
• Emergency Standalone (ESA): Enables voice calls when the connection to the Class 5 or softswitch connection has been cut or disabled.
• ZMS Management: ZMS management: ZMS is a standards-based, carrier-class element management solution that provides management support for Zhone multi-service networks. Zhone's ZMS is a full-featured management system including a complete FCAPS implementation, with Fault, Configuration, Administration, Performance and Security.
• Specials: Non-concentrated using channel bank mode for specials and Coin.
• Local voice transport: Support transport of any local voice port over T1/E1 interfaces with up to 32 T1/E1 interfaces to the Class 5 switch.
• Voice & HSIA combo services: Combo ADSL2+/POTS card available for POTS + broadband HSIA to residential customers.
• OPX Cabinets: Outside plant cabinet solutions in small footprint 4300 series OPX cabinets or larger 5200 series OPX cabinets in designs ideal for voice and broadband service from a multi-service environmental cabinet.

Zhone Value Proposition and Benefits

Zhone does not overlook a carriers' core POTS services and revenues in its support of broadband IP video and data services. MALC supports both VoIP and POTS, allowing service providers the flexibility to choose or migrate voice as their service needs dictate. Supporting broadband and POTS in one access platform, MALC lowers both CapEx and OpEx by a single platform solution rather than a separate NGDLC and DSLAM in OPX cabinet deployments.