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Country Differences
D-6 Issue 1 September 1995
*PPM means Periodic Pulse Metering.
Table D-6. Czech Republic, Slovakia, and Ecuador
Czech Republic
& Slovakia Ecuador
Tone Detector TN744C TN2182 TN420C
Tone-Clock TN2182 TN780
Call Classifier TN744C TN2182 TN744B
R2MFC Circuit Not
Applicable
Speech Synthesizer TN457
Announcement TN750C TN750B TN750C TN750B
Auxiliary Trunk TN763D TN763D
Analog Direct Inward Dialed (DID) Trunk TN753v17
Analog Central Office (CO) Trunk (no PPM *) TN747Bv12
Analog Central Office (CO) Trunk (w/PPM *) TN465C TN465B
4 Wire Tie Trunk TN760Dv11
2 Wire Tie Trunk
Digital Central Office (CO)/Direct Inward
Dialed (DID) Trunk
TN464F TN464E
Digital Tie Trunk TN464F TN464E
Digital Integrated Services Digital Network
(ISDN) Central Office (CO) Trunk
Not
Applicable
8 port Analog Line
16 port Analog Line TN746B
4 Wire Digital Line TN754B TN754B
2 Wire Digital Line TN2136 TN2136
Data Line TN726B TN726B
Table D-7. France and Germany
France Germany
Tone Detector TN744C TN2182 TN744C TN2182 TN420C
Tone-Clock TN2182 TN2182 TN780
Call Classifier TN744C TN2182 TN744B TN744C TN2182 TN744B