AT&T MDC 9000 Installation Manual download pdf (Page 15)

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! "    #$%$  & ' %

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table-top, but 2-card systems were only designed to be wall mounted, to

allow for heat dissipation. The Partner Basic was designed for end-user

installation.

The processor was based on the 80C321 microcontroller with 8K RAM and

64K ROM.

/   &  >  "   

    (  .  " .   , "    

!" 

1990.Oct Call restrictions

Speed dialing

Ringing options

#!" 

1991.Apr Adds support for 200 module

PBX & Centrex support

Adds support for MLC-6 cordless phone

$!" 

1993.Feb Adds support for MLS-18D, MLS-12D phones

Time/date display

Group paging

Power fail support

Music on hold

$! 

?? Support for message waiting on T/R phones.

 !" 

1994.Nov Support for MDC and MDW wireless phones

 ! 

1995.July Final release of Partner Basic

Support for “Partner” (Euro) phones.

The original Partner cards had a specific version of software installed, and

could not be upgraded.

Because the 206 card did not have a music-on-hold port, a special adapter

was needed to connect a music source to a CO line port.

Partner Basic was never designed to be large or feature-rich; Partner Plus was

marketed at the same time with larger capacity and more features. Customers

could upgrade by buying a new processor, keeping any extra circuit cards and

phones.

     

Partner Plus was “big brother” to the original Partner Basic. Sold at the same

time, it offered more features and more capacity. There was an easy upgrade

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AT&T MDC 9000 Installation Manual Page 15