Inbound And Outbound Ip Routing Rules; Accounts; Ip-To-Ip Routing Configuration Example - AudioCodes Mediant 3000 User Manual

18.9.1.3 Inbound and Outbound IP Routing Rules

The device's IP-to-IP call routing is performed using the following two routing rule stages:
1. Inbound IP Routing Mapping Rule: Identifies the received call as an IP-to-IP call
based on various characteristics such as the call's source IP address, and assigns it to
an IP Group.
2. Outbound IP Routing Mapping Rule: Determines the destination (i.e., IP address) to
where the incoming call (classified to a specific IP Group by the Inbound IP Routing
rules) is finally routed. The destination address is typically depicted by another IP
Group (destination IP Group) and therefore, the call is sent to the IP address that is
defined in the Proxy Set associated with this IP Group. If the destination is a USER IP
Group, the device searches for a match between the request URI (of the received
INVITE) to an AOR registration record in the device's internal database. If a match is
found, the INVITE is sent to the IP address of the registered contact.

18.9.1.4 Accounts

Accounts are used by the device to register to a Serving IP Group (e.g., an ITSP) on behalf
of a Served IP Group (e.g., IP-PBX). This is necessary for ITSP's that require registration
to provide services. Accounts are also used for defining user name/password for digest
authentication (with or without registration) if required by the ITSP. Multiple Accounts per
Served IP Group can be configured for registration to more than one Serving IP Group
(e.g., an IP-PBX that requires registering to multiple ITSP's).
Figure 18-39: Registration with Multiple ITSP's on Behalf of IP-PBX

18.9.2 IP-to-IP Routing Configuration Example

This section provides step-by-step procedures for configuring IP-to-IP call routing. These
procedures are based on the setup example described below. In this example, the device
serves as the communication interface between the enterprise's IP-PBX (located on the
LAN) and the following network entities:

ITSP SIP trunks (located on the WAN)

Remote IP-PBX users (located on the WAN)

Local PSTN network
Calls from the Enterprise are routed according to destination.
SIP User's Manual 342
Mediant 3000
Document #: LTRT-89712