Tel To Ip Routing Table - AudioCodes Mediant 1000 User Manual

Table 5-13: Routing Tables, General Parameters (continues on pages 97 to 98)
Parameter
Max Allowed Packet Loss
for Alt Routing [%]
[IPConnQoSMaxAllowedP
L]
Max Allowed Delay for Alt
Routing [msec]
[IPConnQoSMaxAllowedD
elay]
5.5.4.2

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 or with an FQDN (Fully Qualified Domain Name). When a call is routed through
the VoIP gateway (Gatekeeper 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 Gatekeeper, you do not need to configure the Tel to IP Routing Table.
However, if you want to use fallback routing when communication with Gatekeepers is lost,
or to use the 'Filter Calls to IP' and 'IP Security' features 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 Gatekeeper for routing
calls, set the parameter 'PreferRouteTable' to 1. 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 Gatekeeper is used.
Possible uses for Tel to IP Routing can be as follows:
Can fallback to internal routing table if there is no communication with the
Gatekeepers.
Call Restriction – (when Gatekeeper isn't used), reject all outgoing Tel IP calls that
are associated with the destination IP address: 0.0.0.0.
IP Security – When the IP Security feature is enabled (SecureCallFromIP = 1), the
VoIP gateway accepts only those IP Tel calls with a source IP address identical to
one of the IP addresses entered in the Tel to IP Routing Table.
Filter Calls to IP – When a Gatekeeper is used, the gateway checks the Tel IP
routing table before a telephone number is routed to the Gatekeeper. If the number is
not allowed (number isn't listed or a Call Restriction routing rule was applied), the call
is released.
Assign Profiles to destination address (also when a Gatekeeper is used).
H.323 User's Manual
Description
Packet loss percentage at which the IP connection is considered a failure.
The range is 1% to 20%. The default value is 20%.
Transmission delay (in msec) at which the IP connection is considered a failure.
The range is 100 to 1000. The default value is 250 msec.
98
Mediant 1000
Document #: LTRT-83401