AudioCodes MediaPack MP-40 series, Руководство пользователя

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MediaPack BRI Series
User's Manual 172 Document #: LTRT-83702
A.4.5 Overlap Receiving
Overlap receiving means that the call initiator does not have to send the complete number
in the initial setup. The user can send an empty ISDN setup message and then dial digit by
digit. Overlap receiving is supported if the MediaPack is configured as Network side (point-
to-point and point-to-multipoint), or if the MediaPack is configured as point-to-point user
side. If the MediaPack is configured as point-to-multipoint user side, overlap receiving is
not supported. The MediaPack expects the entire number from the network and verifies the
number against the list of MSN’s. If a match is found, the call is accepted; if not, the call is
rejected.
A.4.6 MSN
In ISDN, more than one phone can be connected to a single S-Bus. If the network sends
an ISDN setup to the S-Bus, the ISDN phones can analyze the called part number and
decide whether or not to enter the alerting stage. This decision is based on the MSN.
Consider the following setup:
Figure A-15: MSN Example Setup
In the above setup, the network initiates a call to number "1002". The FAX machine is
configured to MSN 04. This means that the FAX machine does not answer the call. The
ISDN phone and the MediaPack both use MSN 02 and therefore, they enter alerting state
and start ringing.
The MediaPack can be configured to behave exactly like a phone. In this configuration, the
user is required to configure a list of MSN’s. To configure the MediaPack to behave like a
phone, configure the ISDN port to User side and point to multipoint.