AudioCodes MediaPack MP-40 series, Руководство пользователя

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MediaPack BRI Series
User's Manual 106 Document #: LTRT-83702
6.2.3 Routing Tables
The gateway provides two different routing tables:
„
Tel to IP Routing Table: configured for routing incoming Tel calls to IP addresses
(refer to Section '
Tel to IP Routing Table ' on page 106 )
„
IP to Tel Routing Table: configured for routing incoming IP calls to groups of channels
called ISDN interfaces (refer to Section '
IP to Tel Routing Table ' on page 108 )
Note: Settings in the Tel to IP Routing Table may be overridden by proxy
settings. For more information on proxy configuration, refer to '
SIP Proxy &
Registration ' on page 82 .
6.2.3.1 Tel to IP Routing Table
The Tel to IP Routing Table is used to route incoming Tel calls to IP addresses. This
routing table associates a called / calling telephone number’s prefixes with a destination IP
address. When a call is routed through the VoIP gateway (Proxy isn’t used), the called and
calling numbers are compared to the list of prefixes on the IP Routing Table (up to 50
prefixes can be configured). Calls that match these prefixes are sent to the corresponding
IP address. If the number dialed does not match these prefixes, the call is not made.
When using a Proxy server, you do not need to configure the Tel to IP Routing Table.
However, if you want to use fallback routing when communication with Proxy servers is
lost, or to obtain different SIP URI host names (per called number) or to assign IP profiles,
you need to configure the IP Routing Table.
Note that for the Tel to IP Routing table to take precedence over a Proxy for routing calls,
set the parameter 'Prefer Routing Table' to Yes (refer to Section '
SIP Proxy & Registration
Settings ' on page 82 ). The gateway checks the 'Destination IP Address' field in the 'Tel to
IP Routing' table for a match with the outgoing call. Only if a match is not found, a Proxy is
used.
Possible uses for Tel to IP Routing can be as follows:
„
Enables fallback to internal routing table if there is no communication with the Proxy
servers.
„
Always Use Routing Table: When this feature is enabled, even if a Proxy server is
used, the SIP URI host name in the sent INVITE message is obtained from this table.
Using this feature, users are able to assign a different SIP URI host name for different
called and/or calling numbers.
„
Assign Profiles to destination address (also when a Proxy is used).
Note: The Tel to IP Routing Table must contain at least one routing entry. The
gateway provides a default routing entry (Position 0). However, if you
delete this entry, ensure that the table still contains at least one routing
entry.