V7122 Gateway User Guide
221
ini
File Field Name
Web Parameter Name
Valid Range and Description
SecureCallsFromIP
[
IP Security
]
0 = Gateway accepts all SIP calls (default).
1 = Gateway accepts SIP calls only from IP addresses defined in the Tel to
IP routing table. The gateway rejects all calls from unknown IP addresses.
For detailed information on the Tel to IP Routing table, see
Tel to IP Routing
Table
.
Specifying the IP address of a Proxy server in the Tel to IP
Routing table enables the gateway to only accept calls
originating in the Proxy server and rejects all other calls.
AltRouteCauseTel2IP
[Reasons for Alternative
Routing Table]
Table of call failure reason values received from the IP side. If a call is
released as a result of one of these reasons, the gateway tries to find an
alternative route to that call in the ‘Tel to IP Routing’ table.
For example:
AltRouteCauseTel2IP = 486
(Busy here).
AltRouteCauseTel2IP = 480
(Temporarily unavailable).
AltRouteCauseTel2IP = 408
(No response).
The 408 reason can be used to specify that there was no
response from the remote party to the INVITE request.
This parameter can appear up to 5 times.
AltRouteCauseIP2Tel
[Reasons for Alternative
Routing Table]
Table of call failure reason values received from the PSTN side (in Q.931
presentation). If a call is released as a result of one of these reasons, the
gateway tries to find an alternative trunk group to that call in the ‘IP to Trunk
Group Routing’ table.
For example:
AltRouteCauseIP2Tel = 3
(No route to destination).
AltRouteCauseIP2Tel = 1
(Unallocated number).
AltRouteCauseIP2Tel = 17 (Busy here).
This parameter can appear up to 5 times.
If the gateway fails to establish a cal to the PSTN because it
has no available channels in a specific trunk group (for
example, all of the trunk group’s channels are occupied, or the
trunk group’s spans are disconnected or out of sync), it uses the
internal release cause ‘3’ (no route to destination). This cause
can be used in the ‘AltRouteCauseIP2Tel’ table to define
routing to an alternative trunk group.
FilterCalls2IP
[Filter Calls To IP]
0 = Disabled (default)
1 = Enabled
If the filter calls to IP feature is enabled, then when a Proxy is used, the
gateway first checks the Tel
Æ
IP routing table before making a call through
the Proxy.
If the number is not allowed (number isn’t listed or a Call
Restriction routing rule, IP=0.0.0.0, is applied)
,
the call is released.
Alternative Routing Parameters
AltRoutingTel2IPEnable
[Enable Alt Routing Tel to IP]
Operation modes of the Alternative Routing mechanism:
0 = Disabled (default).
1 = Enabled.
2 = Enabled for status only, not for routing decisions.
Summary of Contents for VCX V7122
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