Integration Of Isdn Access Lines - Patton electronics SmartWare R.3.20 Software Configuration Manual

SmartWare Software Configuration Guide
Basic Rate Access Line point-to-point
TE
Phone
Basic Rate Access point-to-multipoint (S-bus)
TE
Phones
Primary Rate Access Line
TE
Phone
Legend:
TE Terminal Equipment (Phone)
NT1 Network Termination 1 (Modem)
NT2 Network Termination 2 (PBX)
IMPORTANT
IMPORTANT
Introduction
S T
NT2 Node
PBX
TE
S/T S/T
NT1
Node
S T
NT2
PBX
Figure 73. Integration of ISDN access lines
Port activation deactivation—ISDN ports can be config-
ured while they are active. However they will be internally dis-
abled to modify the configuration and then re-enabled. All active
calls on the port are dropped during this process. Configuration
changes should only be performed during planned down times.
Reference clock source and synchronization—The
SmartNode uses a single reference clock source for the synchro-
nization of the 64kbit/s PCM channels on the ISDN ports and in
the CS context. This reference clock source can be internal or it
can be derived from one of the ISDN ports. If the clock reference
is not configured in accordance with the network environment,
clock slips and related voice quality degradations can occur.
Refer to chapter 26,
"CS context overview"
how to configure the reference clock
T U
NT1
IP Network
U
IP Network
IP Network
Node
LE Local Exchange
LT Line Termination
ET Exchange Termination
on page 300 on
35 • ISDN port configuration
LT ET
LE
Local Exchange
LT ET
V
ET
Node
457