Accounts; Ip-To-Ip Routing Configuration Example - AudioCodes Mediant 2000 User Manual

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 18-35: 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.
This example assumes the following:

The device has the public IP address 212.25.125.136 and is connected to the
enterprise's firewall/NAT demilitarized zone (DMZ) network, providing the interface
between the IP-PBX, and two ITSP's and the local PSTN.

The enterprise has an IP-PBX located behind a Firewall/NAT:
•
IP-PBX IP address: 10.15.4.211
•
Transport protocol: UDP
•
Voice coder: G.711
•
IP-PBX users: 4-digit length extension number and served by two ITSPs.
•
The enterprise also includes remote IP-PBX users that communicate with the IP-
PBX via the device. All dialed calls from the IP-PBX consisting of four digits
starting with digit "4" are routed to the remote IP-PBX users.
SIP User's Manual 298
Mediant 2000
Document #: LTRT-68814