AudioCodes Mediant 1000B User Manual page 710

To configure this feature, you need to configure the SIP Interface of the proxy server with a
special UDP port range, and use tag-based routing with Call Setup Rules to specify the
exact UDP port you want assigned to each SIP entity (IP PBX), from the SIP Interface port
range. The following procedure describes how to configure the device to use a specific
local UDP port per SIP entity on the leg interfacing with a proxy server that is common to
all the SIP entities. To facilitate understanding, the procedure is based on the previous
example.

To configure specific UDP ports for SIP entities communicating with common
proxy server:
1. Open the SIP Interfaces table (see Configuring SIP Interfaces on page 345), and then
configure the following SIP Interfaces:
•
SIP Interface for leg interfacing with IP PBXs (local UDP port 5060 is used):
General
Index
Name
Network Interface
UDP Port
•
SIP Interface for leg interfacing with proxy server (specific local UDP ports are
later taken from this port range):
General
Index
Name
Network Interface
UDP Port
Additional UDP Ports
Note:
(SIPInterface_AdditionalUDPPorts), see Configuring SIP Interfaces on page 345.
2. Open the IP Groups table (see Configuring IP Groups on page 353), and then
configure the following IP Groups:
•
IP Group for the first IP PBX ("Type" and "Port" tags are later used to identify the
IP PBX and assign it a local UDP port 6001 on the leg interfacing with the proxy
server):
General
Index
Name
Type
SBC Advanced
Tags
User's Manual
For guidelines on configuring the 'Additional UDP Ports' parameter
Mediant 1000B Gateway & E-SBC
1
PBX
WAN
5060
2
ITSP
LAN
5060
6000-7000
1
PBX-1
Server
Type=PBX;Port=6001
710 Document #: LTRT-27055