Nortel Networks 1000 - Manual (Page 669)

Operation 669
Figure 225
E and M Type I signaling patterns - originating party release on a tandem connection
— If answer supervision is provided by the far end, there is a change
from open to ground on the E lead (ground detection).
Outgoing calls are processed as follows:
• The M lead changes from ground to battery.
— If answer supervision is provided by the far-end, there is a change
from open to ground on the E lead (ground detection).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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