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This article describes the steps necessary to configure the 

Spacevars
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so that a call may be placed from a SIP phone through the 

Spacevars
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to an ISDN endpoint as depicted by the following call flow:

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1. In the WebUI, click the Settings tab.
   
   
2. In the left navigation pane, go to Transformation
   
   
3. Add a new Transformation Table.
   
   

4. Add two entries to the new Transformation Table as show below.

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   configured as follows:

    

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   0 Table 1 Transformation Table Configuration
   Input Field Type Input field Value Output Field Type Output Field Value Match Type Description Called Address Number .*6(\d{3})$ Called Address/Number 6/1 Mandatory LyncSetup: Full Number Calling Address Number (.*) Calling Address/Number \1 Mandatory LyncSetup: Full Number

Call Routing Table Configuration

1. In the WebUI, click the Settings tab.
   
   
2. In the left navigation pane, go to Call Routing Table.
   
   
3. Add a new Call Routing Table.
   
   

4. Add an entry to the new Call Routing Table and configure it as shown below.

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   with the values below; keep the fields not listed as the default values.

    

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   0 Table 1 Call Routing Table Configuration
   Field Value Number/Name Translation Table  Select appropriate Translation Table (i.e., Calls to ISDN phones) Destination Signaling Group Select appropriate Signaling Group (i.e., ISDN:Lync Setup)

SIP Signaling Group Configuration

1. In the WebUI, click the Settings tab.
   
   
2. In the left navigation pane, go to Signaling Groups.
   
   

3. Add a new SIP Signaling Group and configure it as shown below.

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   with the values below; keep the fields not listed as the default values.

    

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   0 Table 1 Call Routing Table Configuration
   Field Value SIP Mode Local Registrar Registrar SIP Phones

ISDN Port Configuration

1. In the WebUI, click the Settings tab.
   
   
2. In the left navigation pane, go to Node Interfaces > Ports.
   
   
3. Click the port you wish to configure.
   
   

4. Configure the port as shown below.

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   with the values listed below; keep the keep the fields not listed as the default values.

    

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   0 Table 1 Call Routing Table Configuration
   Field Value Port Alias Specifies an alias for the port (i.e., T1 to Meridian) Description Specifies the description  (i.e., T1 to Meridian)

ISDN Signaling Group Configuration

1. In the WebUI, click the Settings tab.
   
   
2. In the left navigation pane, go to Signaling Groups.
   
   
3. Add a new ISDN Signaling Group.
   
   

4. Configure the new ISDN Signaling Group as shown below.

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   with the values listed below; keep the fields not listed as the default values.

    

   Caption
   0 Table 1 Call Routing Table Configuration
   Field Value Description Description of Signaling Group Switch Variant QSIG Tone Table Default Tone Table Call Routing Table Select appropriate Call Routing Table

Verification

Endpoint Registration:

When the endpoint registers, the registration request arrives to the 

Spacevars
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through the SIP signaling group, the 

Spacevars
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responds to the REGISTRATION request with a 200 OK – a successful SIP endpoint registration occurs.

Using the Log Exchange utility, you can quickly verify the relevant SIP messaging:

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Caption 0 Figure 1 Verify SIP Messaging Image Modified