[TUHS] Known Specimens of Pre-5ESS UNIX Telephone Switching Software?

[steve jenkin]

For those playing along at home, 
“Gecko” was written up.

Virtual Data Warehousing, Data Publishing and Call Detail 
	<https://link.springer.com/chapter/10.1007/10721056_8>

and a conference paper of the same name
	<https://www.researchgate.net/publication/221629788_Virtual_Data_Warehousing_Data_Publishing_and_Call_Detail>

from 
Databases in Telecommunications: International Workshop, Co-located with VLDB-99, Edinburgh, Scotland, UK, September 6th, 1999. Proceedings
	<https://www.researchgate.net/publication/321558305_Databases_in_Telecommunications_International_Workshop_Co-located_with_VLDB-99_Edinburgh_Scotland_UK_September_6th_1999_Proceedings>



> On 26 Sep 2023, at 11:50, Andrew Hume <andrew at humeweb.com> wrote:
> 
> i’m sure there are standing references to all this. but as i recall,
> the 5ESS was a more or less local switching system.
> 
> the guts of the long distance network were embedded in the (roughly) 140 1ESS’s. they ran
> a completely separate (and substantially older) code that supported things like SS7 (signaling code
> that was NOT embedded in the voice channel). the 1ESS was a complex piece of equipment.
> 
> my interaction with this was tangential. throughout the 1980-90s, i had a tight grip on how
> accounting messages were handled within AT&T and wrote some C code that handled a
> a transition from one level of the standard software to another level. and that code ran inside
> the 1ESS.
> 
> but this was a long time ago.

--
Steve Jenkin, IT Systems and Design 
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