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technotite

In-Band Signaling in the former Soviet Union

3 posts in this topic

I've worked on this project for quite a while, and have discussed it on the conference, but have never officially posted recordings on here.

 

There is a large presence of analog and electromechanical switches still in service in the former Soviet countries. The following are 3 recordings of me successfully boxing some of these switches:

 

East Ukraine, ATSK Crossbar Using SF (in-band 2600 dial pulse) Signaling -- seizing and SFing another number:

http://technotite.com/SF-exampUKR1.wav

 

West Russia, Crossbar Using SF (in-band 2600 dial pulse) Signaling -- seizing and SFing another number:

http://technotite.com/SF-exampRUS1.wav

 

East Ukraine, Crossbar Using R1.5 (weird bi-directional MF protocol using R1 tones, used in CIS countries) - seizing and MFing another number:

http://technotite.com/R1.5-examp1.wav

 

Edited by technotite
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Pinned! This is definitely of interest to many people and shouldn't be buried over time.

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