AudioCodes Media Pack MP-112, User Manual

Page: 439 / 486

Version 5.8 439 September 2009
SIP User's Manual 9. IP Telephony Capabilities
9.19 Establishing a Call between Two Devices
This section provides an example on configuring two AudioCodes' devices with FXS
interfaces for establishing call communication. After configuration, you can make calls
between telephones connected to the same device and between the two devices.
This example assumes the following:

The IP address of the first device is 10.2.37.10 and its endpoint numbers are 101 to
104.

The IP address of the second device is 10.2.37.20 and its endpoint numbers are 201
to 204.

A SIP Proxy is not used. Internal call routing is performed using the device's ‘Tel to IP
Routing’ table.

To configure the two devices for call communication:
1. For the first device (10.2.37.10), in the ‘Endpoint Phone Number Table' page (refer to
Configuring the Endpoint Phone Numbers 149 on page ), assign the phone numbers
101 to 104 to the device's endpoints.
Figure 9-12: Assigning Phone Numbers to Device 10.2.37.10
2. For the second device (10.2.37.20), in the ‘Endpoint Phone Number Table
Figure 9-13: Assigning Phone Numbers to Device 10.2.37.20
' page,
assign the phone numbers 201 to 204 to the device's endpoints.
3. Configure the following settings for both
In the ‘Tel to IP Routing’ page (refer to ''
devices:
Configuring the Tel to IP Routing Table''
131
on
page ), add the following routing rules:
a. In the first row, enter 10 for the destination phone prefix and enter 10.2.37.10 for
the destination IP address (i.e., IP address of the first device).
b. In the second row, enter 20 for the destination phone prefix and 10.2.37.20 for the
destination IP address (i.e., IP address of the second device).
These settings enable the routing (from both devices) of outgoing Tel-to-IP calls that
start with 10 to the first device and calls that start with 20 to the second device.
Figure 9-14: Routing Calls Between Devices