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Microsoft Lync Server 2013 54 Document #: LTRT-40127

Enhanced Gateway with Analog Devices

4.13.2 Configuring IP-to-IP Call Routing Rules

This step describes how to configure IP-to-IP call routing rules.

These rules define the route for forwarding SIP messages (e.g., INVITE) received on one

IP interface to another.

The SIP message is routed according to a rule whose configured input characteristics (e.g.,

Source IP Group) match those of the message. If the characteristics of an incoming

message do not match the first rule in the table, they are then compared to the second

rule, and so on, until a matching rule is located. If no rule is matched, the message is

rejected.

In our example scenario, you need to add the following IP-to-IP routing rules to route calls

between the Different IP Groups:



Terminate SIP Registration messages received from the ATA



Terminate SIP OPTIONS messages received from the Lync



Route SIP 3xx messages (Forward) towards the Analog Device Users



Alternative Route SIP 3xx messages (Forward) towards the Lync



Route calls from Lync to Analog device number range towards the ATA



Route all other calls from Lync to Gateway (PSTN) IP Group



Default route calls towards Lync

The routing rules use IP Groups to denote the source and destination of the call. As

configured in Section 4.4 on page 26, IP Group ID 2 is assigned to Lync Server 2013, IP

Group ID 3 is assigned to Gateway entity, and IP Group ID 5 is assigned to Analog device

users.

The figure below shows the configured routing rules ((representing the configuration in this

section) in the IP-to-IP Routing Table:

Figure 4-31: IP-to-IP Routing Table

Note: The routing configuration may change according to the local deployment

topology.

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AudioCodes MediaPack MP-124 Manual de usuario Pagina 54