AudioCodes MediaPack MP-40 series, User Manual

Page: 35 / 180

User's Manual 3. Installing the MediaPack
Version 2.2 35 July 2007
Figure 3-10: Trunk Lifeline Cabling
Figure 3-11: Single ISDN Subscriber Lifeline Cabling
Notes:
•
In the cable setup described above, the PSTN network is only
available upon a power outage. However, the Trunk interface that is
connected to the Lifeline port, can also be connected to an ISDN S/T
interface port (except S/T 0), by using an S-bus splitter. In such a
setup, the PSTN network is always available.
•
The ISDN phone must be configured with an MSN number(s) received
from the Service Provider.
•
The Lifeline cable setup can be reversed (i.e., the ISDN phone can be
connected to the
Lifeline port, and the PSTN network can be
connected to the S/T 0 port). However, in such a configuration, the
ISDN phone can only be used upon a power outage.
•
The Lifeline feature is only supported by certain MediaPack models
(i.e., MP-404 /BRI /ST /AC /LL and MP-408 /BRI /ST /AC /LL) and
therefore, only these models provide a Lifeline port.