Version 6.6 675 October 2014
Installation & Operation Manual 41. PSTN Gateway and IP-to-IP Applications
41.6.2 IP to Telephone/Inbound Routing Table
The IP to Tel / Inbound Routing Table is used to route incoming IP calls to groups of
E1/T1 B channels called Trunk Groups. Calls are assigned to trunk groups according
to any one of the following criteria (or a combination of thereof):
Destination and source host prefix
Destination and source phone prefix
Source IP address
Once the call is routed to the specific Trunk Group, the call is sent to the Mediant 8000
channels assigned to this specific trunk group. The specific channel, within a trunk
group, where the call is sent, is determined according to the trunk group’s channel
selection mode, which is defined in the 'Trunk Group Settings Table' on page 653, or
according to the global parameter Channel Select Mode.
When a release reason that is defined in the ‘Reasons for Alternative IP to Tel
Routing’ table is received for a specific IP to Tel call, an alternative trunk group for that
call is available. To associate an alternative trunk group to an incoming IP call, assign
it with an additional entry in the ‘IP to Trunk Group Routing’ table (repeat the same
routing rules with a different trunk group ID). For detailed information, see 'Reasons
for Alternative Routing' on page 679.
IP to Tel / Inbound Routing Table may also be used for IP-to-IP calls to perform
“inbound routing” – i.e. to identify the received call as an inbound IP-to-IP call and to
assign it to the specific IP Group.
41.6.2.1 IP to Telephone/Inbound Routing Provisioning Rules
IP to Telephone / Inbound Routing table consists of the following two parts:
Matching Rules
Destination Rules
All calls that match all or any combination of the “matching rules” are subsequently
sent to the destination Trunk IP Group or assigned to a specific inbound IP Group.
The IP address can include wildcards. The 'x' wildcard is used to represent single
digits, e.g., 10.8.8.xx represents all addresses between 10.8.8.10 to 10.8.8.99. The '*'
wildcard represents any number between 0 and 255, e.g., 10.8.8.* represents all
addresses between 10.8.8.0 and 10.8.8.255.
For available notations that represent multiple numbers, see 'Dialing Plan Notation' on
page 666.
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