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Major benefits of the AOSS include Directory Assistance is provided with a |
modern environment, AOSS position administrative activities are performed by |
the DMS-200 toll maintenance system, trunking savings are achieved by |
combining trunking for 1+ and 0+, and Directory Assistance traffic, DA |
services are managed by using TOPS methods, Creation of a built-in training |
system, which does not require additional training equipment and reduces |
training costs. |
Integrated Business Network |
The Integrated Business Network (IBN) is a revenue-producing concept |
designed for small and big businesses to offer modernized PBX and Centrex |
features. The Operating Company can use the IBN to maintain and enhance its |
competitive position on a operational DMS-100 and DMS 100/200 switches. |
While using the DMS-100 switch, the Operating Company can support varying |
business features along with existing local/toll traffic. |
IBN services can be introduced to a Centrex-Central Office (CO) or a |
Centrex-Customer Unit (CCU) by additional software modules and minor hardware |
enhancements. |
Current IBN features include: A growing system that can handle 30,000 |
lines, networking capabilities, city wide service for DMS- 100 switch and |
remotes for any one customer station Message Detail Recording (SMDR), which |
gives IBN customers call records. The records can be used for system analysis |
and control and station charge-back. SMDR can use LAMA records, if the IBN |
host has LAMA equipment, Centralized attendant maintenance and administration |
functions and Direct Inward Dialing (DID). |
Electronic Switched Network (ESN) |
The Electronic Switched Network is designed to meet the telecommunication |
needs of large multi-location corporations. The ESN is made up of a SL-1 or |
SL-100 Digital Business Communications System with networking features or a |
DMS-100 IBN host. The SL-1 can handle from 30-5000 lines. The SL-100 and the |
DMS-100 IBN hosts can hold from a few thousands to 30,000 lines. |
A DMS-100 IBN or SL-100 can remotely serve many locations from the host |
site. This is done by a connection through digital transmission facilities |
which are set up at remote modules at the subscriber's premises. |
Specialized Common Carrier Service (SCCS) |
The DMS-250 Specialized Common Carrier Service (SCCS) provides the |
capability of Analog to Digital (A/D) and Digital to Analog (A/D) conversions |
which are necessary with analog circuits. The DMS-250 can also switch voice |
and data circuits. |
The DMS-250 takes either analog or digitally encoded info and by using time |
slot interchange, switches it from any input port to a temporary addressed and |
connected exit port. The info may or may not be converted back to analog. |
Normal Private Telecommunications Network Diagram: |
----- ------ |
[Phone]--| SnS | | SL-1 |-[Phone] |
| PBX | | PBX | |
----- ------ |
| |DOD/DID DOD/DID| | |
| ------- ------- | |
|Tie | | Tie| |
|Trunk --------- Trunk| |
------| Class-5 |------ |
----| Centrex |---- |
| --------- | |
| | |
| | |
| | |
----- Tie Trunk --------- |
| SnS | ----------| Class-5 | |
| PBX | | Centrex | |
----- --------- |
| | |
| | |
| | |
| | |
------- ------ |
[Phone]-| Small | | SL-1 |-[Phone] |
| PBX | | | |
------- ------ |
Cellular Mobile Radio Service |
A cellular system consists of two main parts a cellular switch and cell |
site equipment. |
Cellular Switching Systems |
A cellular switch performs three main functions audio switching, cell site |
control, and system administration. |
The DMS switches provide three basic implementations for cellular switching |
Stand-alone, Combined, and Remote. |
Stand-alone switching is done by a Mobile Telephone Exchange (MTX) which is |
interfaced with one or more class 5 end offices. The connection is made by |
DID/DOD trunks. Depending on the needs of the area, the MTX can be divided as |
follows: MTX which serves urban areas, MTXC which handles suburban areas, and |
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