Nortel DMS 100 Series Maintenance Manual page 105

Figure 4-8 DC5ADD to DC5ADD call origination
t
i
m
e
*
Start T1
*
Start T2
*
Stop T2
Start T3
*
Stop T3
Start T7
*
Stop T7
Start T9
*
Stop T9,T1
Call origination sequencing from a DC5ADD line to a DC5ADD line.
1. AMC to originating exchange After the originating exchange receives a
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
DC5ADD
seizure
dial delay
proceed to send
DTMF digits
last DTMF digit
call established
seizure signal from the AMC, the T1 timer starts. The originating
exchange sends a dial delay signal back to the AMC node within 30 ms.
When the exchange is ready to receive digits, the system sends a proceed
to send signal to the AMC. The T2 timer starts. The originating exchange
attaches a universal tone receiver (UTR) to the call. When the originating
RSC-M Signaling and Communications 4-15
originating
office
BTUP
ic og
*
*
*
IFAM
*
**
ACM
*
ring-
ing
ANM
*
speech
terminating
DC5ADD
office
ic og
seizure
dial delay
proceed to send
DTMF digits
last DTMF digit
call established