What's Planned in FIVE

Access Interface Unit (AIU)

The Access Interface Unit (AIU) Platform and POTS Lines (AIU) Core and POTS) feature provides a new access interface unit with POTS functionality. This feature is responsible for the development of the new AIU unit which takes advantage of new technologies to lower the cost on the individual line packs. All common equipment is centralized on a single COMmon DAta and Control (COMDAC) circuit pack, one for each service group. All remaining packs are applications packs. In the initial release of AIU, the only application packs supported are Line Packs (LP's), which terminate the subscriber lines, and Ringing Generators (RG's).

Modular Controller/Time Slot Interchange Unit Model 3

The Modular Controller/Time Slot Interchange Unit, Model 3 (MCTU3) is a software update feature that has been developed to provide a significant cost savings for the Switching Module hardware. This feature combines several circuit packs into one (1), and reduces the MCTU2 from two (2) shelves to one (1) shelf.

Land Cellular Option is Being Added to FIVE

The Land Cellular Option (LCO) enables a 5ESS-2000 Switch owners to offer cellular service for a fraction of the price of a standalone cellular platform. The cell site is in the installation phase, and the ECP (Executive Cellular Processor) is being ordered. It won't be long and you can "kick the tires" of the AUTOPLEX System 1000 in the FIVE Facility.

5E10 Capabilities

National ISDN 96 (NI96)

With the introduction of 5E10, the 5ESS-2000 Switch now supports NI96. This is a group of National ISDN features including:
  • Support of Non-Initializing Terminals (NIT) - NITs are special ISDN CPE that can provide basic voice and data services without the need to initialize on a SPID. Only very basic services can be provided by a NIT.
  • Default Services Profile - When default services are allowed on an ISDN line, it allows access to BRI test line, 611, 811 and 911 even though the CPE has not been programmed with a valid SPID.
  • BRI Verification for National ISDN - This allows the use of a dial code input at a piece of CPE to display the Office Equipment Number (OE) of the BRI line card serving that CPE.
  • Calling Party Number Identification Services Inter-Group Delivery - This feature is similar to LIGI in that it restricts the incoming caller ID delivery to only other members of the same terminal group. Any callers from outside the terminal group will display "Incoming Call" instead of the caller ID. Where it differs from MIGI, is that where LIGI can only be assigned by SM, CNIGI can be assigned for the whole switch, by terminal group or by individual member of a terminal group. Only members of terminal groups are affected by this feature.
  • National ISDN Call Forwarding Over Private Facilities - With 5E10, call forward over private facilities feature can now be provisioned on an NI line.
  • Inhibit DSL Maintenance - This gives the capability to disable maintenance tests for IDCU TR303 RTs.
  • ISDN/PCS Interworking - This allows NI BRIs on AIN to interface with RPCUs/IBSs.
And in the second quarter of 1996, the final feature is scheduled to be made available:
  • Calling Name Delivery for ISDN - This is the ISDN version of the AIN feature DNAM for analog. It will be available for both National ISDN and AT&T Custom ISDN. Capabilities are now available in the FIVE Facility.

15 Digit IDDD (International Direct Distance Dialing)

15 digit IDDD dialing is a secured 5E10 feature. This feature allows the country code and national number of an international call to be expanded from 12 to 15 digits. This number count does not include 01 or 011. In addition to this capability, the PRI now has the ability to transport 18 digits. Previously the PRI had a maximum digit capacity of 15 digits. Prior to 5E10 international calls dialed over PRIs that included dial codes in addition to country code and national number may have exceeded the 15 digit limit. Come in and try it, you'll like it!

TR008 to TR303 Conversion

Conversion Convergence

Technical Reference TR-TSY-000303, often referred to as simply "TR303", describes Bellcore's view of the overall system functions and performance levels required for integrating a Digital Loop Carrier System (DLC) into a Local Digital Switch (LDS) at the DS1 transmission rate. What differentiates it from its TR-TSY-000008 predecessor is that TR303 addresses the need for compatibility with the Integrated Services Digital Network (ISDN). TR303 is restricted to features required to transport Basic Access ISDN services from one end of an Integrated Digital Carrier (IDLC) system to the other. It specifies operations, maintenance, and performance requirements for ISDN Basic Access capability of IDLC systems.

The economic benefits of a marked increase in demand for new, ISDN based services is motivating operating companies to upgrade their, embedded TR008 digital loop carrier systems to the TR303 interface.

Interoperability Readout

Interoperability Testing Update

BRI ISDN CPE interoperability testing continues to grow in popularity with CPE vendors. As of now 17 vendors have tested in the FIVE Facility.
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