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Diagram below displays the IMG 2020 which accepts a E.164 telephone number. The IMG 2020 converts the number and adds .e164.arpa to it as displayed below. The Database does a lookup and converts the query to E2U+SIP format (sip:info@example.com) and sends back to IMG 2020 where it is added to a SIP INVITE message. See diagram below.
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Call Trace
Refer to Call Trace - ENUM link.
Configuration
The procedure below explains how to configure the IMG 2020 for a SIP enum query. Before configuring SIP ENUM, the IMG 2020 must have an initial configuration created on it. Follow the Basic Configurations procedure before proceeding onto configuring SIP enum feature.
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Right click on the Profiles object and select New SIP Profiles. The SIP Profiles object is a parent or container object. No configuration is needed here. Refer to the SIP Profiles topic for more information on this object.
Right click on the SIP Profiles object and select New SIP Profile. The first profile that gets created is a Default SIP Profile and cannot be modified. Disregard this profile.
Right click on the SIP Profiles object and select New SIP Profile again. In the SIP Profile object that appears, either enter a name that identifies this SIP Profile or accept the default name already entered. In this example the SIP Profile was labeled SIP Default. For information on configuring the individual fields in the SIP Profile object, refer to the SIP Profile - SGP topic.
Create a SIP ENUM Server Set
Right click on the Dialogic object and select New External Network Elements. The External Network Elements object is a parent or container object and no configuration is needed here. Refer to External Network Elements topic for more information.
Right click on External Network Elements object and select New ENUM Server Set. Either enter a name that identifies the ENUM Server Set being configured or accept the default entry.
In the SIP Profile field, select the SIP Profile created above. Refer to the ENUM Server Set topic for information on configuring the remaining fields.
Right click on ENUM Server Set and select New ENUM Server. Either enter a name that identifies the ENUM Server being configured or accept the default entry.
Enter the IP address of the ENUM Server in the IP address field. This will be the IP address the IMG 2020 uses to communicate with the ENUM server.
Create a DNS Client
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These are the same steps as configuring a DNS server for Host Name resolution. Refer to Configure DNS topic for more information.
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Right click on the Dialogic object and select New Routing Configuration. The Routing Configuration object is a parent or container object and no configuration is needed here. Refer to the Routing Configuration topic for more information.
Right click on the Routing Configuration object and select New Channel Groups. The Channel Groups object is a container object also and no configuration is needed. Refer to the Channel Groups topic for more information.
Right click on the Channel Groups object and select New Channel Group. Either enter a name that identifies this channel group or accept the default entry. In this example the Channel Group was labeled ENUM_CG.
Select SIP from the drop down menu of the Signaling Type field. Refer to Channel Group topic for more information on configuring the remaining fields.
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The configuration above displays how to create and configure the SIP Profile object, the SIP Channel Group, the SIP ENUM Server and how to associate the ENUM Server to the channel group. If not already configured, the SIP signaling stack and associated objects need to be configured. Refer to the Configure SIP (Single SIP IP) topic for a procedure that describes how to configure the SIP signaling functionality. This procedure can be used to finish the SIP configuration for this feature.
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