SIP User's Manual 532 Document #: LTRT-12801
MP-500 MSBG
9.18 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:
îš„ The IP address of the first device is 10.2.37.10 and its endpoint numbers are 101 to
104.
îš„ 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.
¾ To configure the two devices for call communication:
1. For the first device (10.2.37.10), in the ‘Trunk Group Table' page (refer to ), assign
the phone numbers 101 to 104to the device's endpoints.
Figure 9-40: Assigning Phone Numbers to Device 10.2.37.10
2. For the second device (10.2.37.20), in the ‘Trunk Group Table' page, assign the phone
numbers 201 to 204to the device's endpoints.
Figure 9-41: Assigning Phone Numbers to Device 10.2.37.20
3. Configure the following settings for both devices:
In the ‘Tel to IP Routing’ page (refer to ''Configuring the Tel to IP Routing Table'' on
page 201), a
dd 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).
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