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AUTH1 UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb41059c8a00a0c85b2726c2015b58aa779d0003, userName='null'} JIRAIDAUTH SYM-2791428481 REV5 UserResourceIdentifier{userKey=8a00a0c85b2726c2015b58aa779d0003, userName='null'} REV6 UserResourceIdentifier{userKey=8a00a0c85b2726c2015b58aa779d0003, userName='null'} REV3 UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cef30cd08a00a02355cd1c2f0155cd26c7f0006a, userName='null'} REV4 UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26c91d01f98a00a02355cd1c2f0155cd26ccd308e6, userName='null'} REV1 UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26ca2f03d1, userName='null'} REV2 UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cabc04c3, userName='null'}

Panel
Table of Contents

...

Overview

Note
title Caution
When the  Spacevars 0 product3 is deployed in Azure, the  Spacevars 0 product3 does not support Local Media Optimization. Local Media Optimization is available only in on-premises deployments.

...

This best practice outlines how to use the 

Spacevars
0 company

 

Spacevars
0 product

to configure Local Media Optimization for Microsoft Teams Direct Routing. Local Media Optimization allows the Microsoft Teams Direct Routing media flow to always use the shortest path to improve the

Spacevars
0 product

's media quality and bandwidth usage. The Microsoft Teams Direct Routing media flow can be directly established between the Teams client and the

Spacevars
0 product2

, even if the 

Spacevars
0 product2

does not have Microsoft Teams Direct Routing connectivity. The

Spacevars
0 series

,

Spacevars
0 series2

, and 

Spacevars
0 product3

support the Proxy , Central, and Downstream SBCs. For more details about this feature, refer to Local Media Optimization for Direct Routing.

Caption
0 Figure 1 Microsoft Teams Direct Routing Media Flow

This best practice uses describes greenfield and migration deployments and explains the requirements for each case. This best practice includes cautions to specify the deployment scenarios.

...

• the 

  Spacevars
  0 product3

  as a Proxy 

  Spacevars
  0 product2

  in the central site

• the

  Spacevars
  0 series

  as a Downstream 

  Spacevars
  0 product2

  in a local branch office

Info
title Note
For the Proxy You can use the Prepare Proxy SBC procedure to configure the  Spacevars 0 product2 as a Central ,  Spacevars 0 product2 .The Proxy  company recommends that you use the Spacevars 0 product2 information in this best practice applies to a Central Spacevars 0 product2 configuration unless otherwise stated.
Info
title Note
product3 because it has For the Proxy Spacevars 0 product2 ,  Spacevars 0 company recommends that you use the Spacevars 0 product3 because it has higher CPS (up to 10 CPS) and higher session density (up to 1200 simultaneous Direct Routing calls). Make sure the licensed quantity of sessions on the  Spacevars 0 product3 accommodates the maximum number of Local Media Optimization calls that the subtended (attached behind the Proxy Spacevars 0 product2 ) Downstream Spacevars 0 product2 s carry.

...

• Call made to and from a Teams client that is internal to the customer network:
  • The Proxy 

    Spacevars
    0 product2

    consumes the Proxy Media Mode with Encryption resource.
    
  • The Downstream 

    Spacevars
    0 product2

    consumes the SIP with corresponding RTP Media resource.
    
• Call made to and from a Teams client that is external to the customer network:
  • The Proxy 

    Spacevars
    0 product2

    consumes the SIP with corresponding RTP Media resource.
    
  • The Downstream 

    Spacevars
    0 product2

    consumes the SIP with corresponding RTP Media resource.
    

Firmware Requirement

Microsoft Certified Endpoints

When using LMO for a Proxy Downstream SBC deployment, all endpoints must be Microsoft compliant/certified. 

Firmware Requirement

The Proxy 

Spacevars
0 product2

The Proxy 

Spacevars
0 product2

requires the following firmware:

• Spacevars
  0 product3

  : Release 8.1.5 Build 239 and later, or Release 9.0.0 and later

• Spacevars
  0 product

  : TEAMS_MEDIAOP build 13  Release 9.0.x latest GA build

Spacevars
0 company

 recommends the following versions for the Downstream 

Spacevars
0 product2

for an easier configuration:

• Spacevars
  0 product3

  : Release 8.1.5 Build 239 and later, or Release 9.0.0 and later

• Spacevars
  0 product

  : TEAMS_MEDIAOP build 13Release 9.0 latest GA build

Info
title Note
This document outlines only the recommended firmware.

...

• You must plan the Microsoft Teams tenant for Local Media Optimization usage according to the Local Media Optimization for Direct Routing document.
• You must configure the Microsoft Teams tenant for Local Media Optimization usage according to the Configure Local Media Optimization for Direct Routing document. When you configure the Microsoft Teams Direct Routing, you must also configure the following items:

  • CsTenantTrustedIPAddress

  • CsTenantNetworkRegion

  • CsTenantNetworkSite

  • CsTenantNetworkSubnet

  • CSOnlinePSTNGateway

  • CsOnlineVoiceRoute

Certificate Usage

Licensing Requirements

The LMO functionality requires the Downstream SBCs to use a Proxy/Central SBC as a registrar, hence this requires the Proxy/Central SBC to have SIP Registration licenses. This applies for both 1000/2000 and SBC SWe Lite. 

Certificate Usage

The Proxy 

Spacevars

The Proxy 

Spacevars
0 product2

requires a certificate signed by a public certificate authority.

...

The public certificate must be issued by one of the supported certification authorities (CAs). Wildcard certificates are supported.

• Refer to Microsoft documentation for the certificate information.
• Refer to CCADB Documentation for the comprehensive list of supported CAs.
• See Domain Name for certificate formats.

...

This section outlines how to prepare the Proxy

Spacevars
0 product2

.

Install 

Spacevars
0 product2

and Perform Initial Setup

Noteinfo
title Note Caution
Perform this procedure only if you are creating a new You can use the procedures in this section if you want to configure a Central Spacevars 0 product2 . Note that the screen captures in this section are not examples of Central for the Proxy role (a greenfield scenario).

Use the following procedure to install the 

Spacevars
0 product2

...

and perform the initial setup: Installing SBC SWe Lite

...

Run Easy Config Wizard on Proxy

Spacevars
0 product2

...

...

Once your 

Spacevars
0 product2

is up and running, you must configure the 

...

Spacevars
0 product2

...

title	Caution

to connect to the Microsoft Teams Direct Routing Server and allow the Downstream 

Spacevars
0 product2

...

connection.

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0

...

1. product

...

1. in the URL address bar. The Welcome to

   Spacevars
   0

...

1. company

   screen is displayed.
2. Review the Pre-Login message.
3. Enter the administrator User Name and Password configured during initial setup.
4. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

5. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

6. Select Tasks > SBC Easy Setup > Easy Config Wizard.

   Caption
   0 Figure 1 Easy Config Wizard
   Image Added

   
   

7.  In the Application field, select your application. This best practice configures the SIP Trunk ↔ Microsoft Teams.

   Caption
   0 Figure 1 Easy Configuration Step 1
   Image Added

   
   

8. Configure the other fields in Step 1 and click Next.

9. In the SIP Trunk section, enter the information for the central SIP Trunk provider.

10. In the Teams Connection Type field, select Local Media Optimization.

Once your 

Spacevars
0 product2

is up and running, you must configure the 

Spacevars
0 product2

to connect to the Microsoft Teams Direct Routing Server and allow the Downstream 

Spacevars
0 product2

connection.

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0 product

   in the URL address bar. The Welcome to

   Spacevars
   0 company

   screen is displayed.
3. Review the Pre-Login message.
4. Enter the administrator User Name and Password configured during initial setup.
5. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

6. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

7. Select Tasks > SBC Easy Setup > Easy Config Wizard.

   Caption
   0 Figure 1 Easy Config Wizard
   Image Removed
   Configuration Step 2
   Image Added

   
   

8. Configure the other fields in the Microsoft Teams section and click Next.

9. Review your configuration information in Step 3 and click Finish.

    In the Application field, select your application. This best practice configures the SIP Trunk ↔ Microsoft Teams.

   Caption
   0 Figure 1 Easy Configuration Step 13
   Image Removed

10. Configure the other fields in Step 1 and click Next.

In the SIP Trunk section, enter the information for the central SIP Trunk provider.

Info

title	Note

For a Central

11. Image Added

    
    

Import Certificate on Proxy

Spacevars
0 product2

...

This section outlines how to import a certificate on the Proxy

Spacevars
0 product2

.

Anchor
config_certificate config_certificate

Configure and Generate Certificates on the

Spacevars
0 product2

In the Teams Connection Type field, select Local Media Optimization.

Caption
0 Figure 1 Easy Configuration Step 2
Image Removed

Configure the other fields in the Microsoft Teams section and click Next.

Note
title Caution
The  Spacevars 0 product will not support the Outbound NAT Traversal field until the  Spacevars 0 product3 9.0.0 release.

Review your configuration information in Step 3 and click Finish.

Caption
0 Figure 1 Easy Configuration Step 3
Image Removed

Import Certificate on Proxy

Spacevars
0 product2

...

Expand
title Click here to expand for how to generate Certificates on the SBC
Warning title Warning: Common Encryption Certificate Issues Arise from Missing Root Certificates Did you only install the CA-signed  Spacevars 0 product2 certificate, along with the intermediate certificate(s) sent by your issuing CA? Did you get the following error message from the

Spacevars 0 product2

...

?

...

Image Added If so, the likely reason is a missing CA Root Certificate. The

Warning title Warning: Common Encryption Certificate Issues Arise from Missing Root Certificates Did you only install the CA-signed  Spacevars 0 product2
Expand
title Click here to expand for how to generate Certificates on the SBC
does not have any pre-installed CA root X.509 certificates, unlike typical browsers found on your PC. Ensure the entire certificate chain of trust is installed on the Spacevars 0 product2 certificate , along with including the intermediate certificate(s) sent by your issuing CA?Did you get the following error message from root certificate. Acquire the CA root certificate as follows: Contact your system administrator or certificate vendor to acquire the root, and any further missing intermediate certificate(s) to provision the entire certificate chain of trust within the Spacevars 0 product2 ?Image Removed If so, the likely reason is a missing CA Root Certificate. The  ; Load the root certificate, along with the intermediate and  Spacevars 0 product2 certificates, according to Importing Trusted Root CA Certificates. NOTE: Root certificates are easily acquired from the certificate authorities. For example, the root certificate for the GoDaddy Class 2 Certification Authority may be found at https://ssl-ccp.godaddy.com/repository?origin=CALLISTO . For more information about root certificates, intermediate certificates, and the  does not have any pre-installed CA root X.509 certificates, unlike typical browsers found on your PC. Ensure the entire certificate chain of trust is installed on the Spacevars 0 product2 , including the root certificate. Acquire the CA root certificate as follows: Contact your system administrator or certificate vendor to acquire the root, and any further missing intermediate certificate(s) to provision the entire certificate chain of trust within the server (“leaf”) certificates, refer to this tutorial. For other certificate-related errors, refer to Common Troubleshooting Issues with Certificates in SBC Edge. Microsoft Teams Direct Routing allows only TLS connections from the  Spacevars 0 product2 ; for SIP traffic with a certificate signed by one of the trusted certification authorities. Load the root certificate, along with the intermediate and  Request a certificate for the  Spacevars 0 product2 certificates, according to Importing Trusted Root CA Certificates.NOTE: Root certificates are easily acquired from the certificate authorities. For example, the root certificate for the GoDaddy Class 2 Certification Authority may be found at https://ssl-ccp.godaddy.com/repository?origin=CALLISTO . For more information about root certificates, intermediate certificates, and the  External interface and configure it based on the example using GlobalSign as follows: Generate a Certificate Signing Request (CSR) and obtain the certificate from a supported Certification Authority. Import the Public CA Root/Intermediate Certificate on the Spacevars 0 product2 server (“leaf”) certificates, refer to this tutorial. . Import the Microsoft CA Certificate on the Spacevars 0 product2 . Import For other certificate-related errors, refer to Common Troubleshooting Issues with Certificates in SBC Edge. Microsoft Teams Direct Routing allows only TLS connections from the  Spacevars 0 product2 for SIP traffic with a certificate signed by one of the trusted certification authorities. Certificate. Info title Note The certificate is obtained through the Certificate Signing Request (instructions below). The Trusted Root and Intermediary Signing Certificates are obtained from your certification authority. Step 1: Request a certificate for the  Spacevars 0 product2 External interface and configure it based on the example using GlobalSign as follows: Generate a Certificate Signing Request (CSR) and obtain the certificate from a supported Certification Authority . (CA) Many CA's do not support a private key with a length of 1024 bits. Validate with your CA requirements and select the appropriate length of the key. Import the Public CA Root/Intermediate Certificate on the Spacevars 0 product2 . Import the Microsoft CA Certificate on the Access a compatible web browser. In the browser, enter the IP address of the  Spacevars 0 product2 product in the URL address bar. The Welcome to Import the  Spacevars 0 product2 company Certificate screen is displayed. Info title Note The certificate is obtained through the Certificate Signing Request (instructions below). The Trusted Root and Intermediary Signing Certificates are obtained from your certification authority. Step 1: Generate a Certificate Signing Request and obtain the certificate from a supported Certification Authority (CA) Many CA's do not support a private key with a length of 1024 bits. Validate with your CA requirements and select the appropriate length of the key. Access a compatible web browser. In the browser, enter the IP address of the  Spacevars 0 product in the URL address bar. The Welcome to Spacevars 0 company screen is displayed. Review the Pre-Login message. Enter the administrator User Name and Password configured during initial setup. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system. Access Settings > Security > SBC Certificates. Click Generate SBC Edge CSR. Enter data in the required fields. Click OK. After the Certificate Signing request finishes generating, copy the result to the clipboard. Caption 0 Figure 1 Generate Certificate Signing Request Image Removed Use the generated CSR text from the clipboard to obtain the certificate.  Review the Pre-Login message. Enter the administrator User Name and Password configured during initial setup. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system. Access Settings > Security > SBC Certificates. Click Generate SBC Edge CSR. Enter data in the required fields. Click OK. After the Certificate Signing request finishes generating, copy the result to the clipboard. Caption 0 Figure 1 Generate Certificate Signing Request Image Added Use the generated CSR text from the clipboard to obtain the certificate.  Step 2: Deploy the  Spacevars 0 product2 and Root/Intermediate Certificates on the Spacevars 0 product2 After receiving the certificates from the certification authority, install the  Spacevars 0 product2 Certificate and Root/Intermediate Certificates as follows: Obtain Trusted Root and Intermediary signing certificates from your certification authority. Access a compatible web browser. In the browser, enter the IP address of the  Spacevars 0 product in the URL address bar. The Welcome to Spacevars 0 company screen is displayed. Review the Pre-Login message. Enter the administrator User Name and Password configured during initial setup. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system. To install Trusted Root Certificates, click Settings > Security > SBC Certificates > Trusted Root Certificates. Click Import and select the trusted root certificates. To Step 2: Deploy the  Spacevars 0 product2 and Root/Intermediate Certificates on the Spacevars 0 product2 After receiving the certificates from the certification authority, install the  Spacevars 0 product2 Certificate and Root/Intermediate Certificates as follows: Obtain Trusted Root and Intermediary signing certificates from your certification authority. Access a compatible web browser. In the browser, enter the IP address of the  Spacevars 0 product in the URL address bar. The Welcome to Spacevars 0 company screen is displayed. Review the Pre-Login message. Enter the administrator User Name and Password configured during initial setup. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system. To install Trusted Root Certificates, click Settings > Security > SBC Certificates > Trusted Root Certificates. Click Import and select the trusted root certificates. To install the  Spacevars 0 product2 certificate, open Settings > Security > SBC Certificates > SBC Primary Certificate. Validate the certificate is installed correctly certificate, open Settings > Security > SBC Certificates > SBC Primary Certificate. Validate the certificate is installed correctly. Caption 0 Figure 1 Validate Certificate Image Added Click Import  and select X.509 Signed Certificate. Validate the certificate is installed correctly. Caption 0 Figure 1 Validate Certificate Image Added

Update the Current Call Routing

Note
title Caution
Perform this procedure only if you are using a node that is already configured with another signaling group (a migration scenario).

If this is not a newly deployed 

Spacevars
0 product2

and you have already configured one of the following, follow the corresponding instructions:

Validate the certificate is installed correctly.

• If you configured a SIP Trunk or PSTN Access on this

  Spacevars
  0 product2

  , you must perform the following procedure to select the previously created signaling group in the From Microsoft Teams Direct Routing table (see the following example call flow).

  Caption
  0 Figure 1 Call Routing Setup to old PSTN - Proxy SBC
  Image Added

  
  

  1. Select Settings > Call Routing > Call Routing Table.

  2. Select the call routing table for Microsoft Teams Direct Routing.

  3. Select the To Outside (Passthrough) route entry.

  4. In the Destination Signaling Groups field, select the Border Element signaling group and click Remove.

     Caption
     0 Figure 1

...

Image Removed

...

• 1. Remove Border Element for Teams Direct Routing

     Image Added

     
     

  2. In the Destination Signaling Groups field, click Add and add your previously created SIP Trunk or PSTN Access.

• 1. Caption
     0 Figure 1

...

• 1. Add SIP Trunk or PSTN Access for Teams Direct Routing

     Image Added

     
     

  2. In the Audio Stream Mode field, select Direct Preferred over DSP.

     Caption
     0 Figure 1 Audio Stream Mode for Teams Direct Routing
     Image Added

     
     

  3. Click Apply.

  4. Click Signaling Groups.
  5. Delete the Border Element signaling group.

• If you configured a connection to Teams Direct Routing or Skype for Business, you must remove the previously created signaling group

...

Image Removed

Update the Current Call Routing

Note
title Caution
Perform this procedure only if you are using a node that is already configured with another signaling group (a migration scenario).

If this is not a newly deployed 

Spacevars
0 product2

and you have already configured one of the following, follow the corresponding instructions:

• If you configured a SIP Trunk or PSTN Access on this

  Spacevars
  0 product2

  , you must perform the following procedure to select the previously created signaling group in the From Microsoft Teams Direct Routing table (see the following example call flow).

  Caption
  0 Figure 1 Call Routing Setup to old PSTN new Teams - Proxy SBC
  Image Removed

• Select Settings > Call Routing > Call Routing Table.

• Select the call routing table for Microsoft Teams Direct Routing.

• Select the To Outside (Passthrough) route entry.

In the Destination Signaling Groups field, select the Border Element signaling group and click Remove.

Caption
0 Figure 1 Remove Border Element for Teams Direct Routing
Image Removed

In the Destination Signaling Groups field, click Add and add your previously created SIP Trunk or PSTN Access.

Caption
0 Figure 1 Add SIP Trunk or PSTN Access for Teams Direct Routing
Image Removed

In the Audio Stream Mode field, select Direct Preferred over DSP.

Caption
0 Figure 1 Audio Stream Mode for Teams Direct Routing
Image Removed

• Click Apply.

• Click Signaling Groups.
• Delete the Border Element signaling group.

If you configured a connection to Teams Direct Routing or Skype for Business, you must remove the previously created signaling group (see the following example call flow).

Caption
0 Figure 1 Call Routing Setup to new Teams - Proxy SBC
Image Removed

Disable Validate Server FQDN in TLS Profile

Info
title Note
This section applies to only the Proxy SBC for the  Spacevars 0 product3 Release 8.1.5.

Use the following procedure to disable the Validate Server FQDN in the TLS Profile.

• Image Added

  
  

Disable Validate Server FQDN in TLS Profile

Info
title Note
This section applies to only the Proxy SBC.

Use the following procedure to disable the Validate Server FQDN in the TLS Profile.

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0 product

   in the URL address bar. The Welcome to

   Spacevars
   0 company

   screen is displayed.
3. Review the Pre-Login message.
4. Enter the administrator User Name and Password configured during initial setup.
5. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

6. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

7. Select Settings > Security.

8. From the TLS Profiles drop-down menu, select the TLS profile for the Teams Direct Routing TLS.
9. In the Validate Server FQDN field, select Disabled.

Verify the Deployment

After you configure the Proxy

Spacevars
0 product2

, use the following procedure to verify that the 

Spacevars
0 product2

works properly.

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0 product

   in the URL address bar. The Welcome to

   Spacevars
   0 company

   screen is displayed.
3. Review the Pre-Login message.
4. Enter the administrator User Name and Password configured during initial setup.
5. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

6. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

7. Select Settings > SecuritySignaling Groups.

8. From the TLS Profiles drop-down menu, select the TLS profile for the Teams Direct Routing TLS.
9. In the Validate Server FQDN field, select Disabled.

Verify the Deployment

...

1. Make sure the Service Status for all signaling groups is Up.

   Caption
   0 Figure 1 Signaling Group Verification
   Image Added

   
   

2. If the Service Status for the Teams Direct Routing signaling group is Down, refer to Best Practice - Troubleshoot Issues with Microsoft Teams Direct Routing.

Prepare Downstream

Spacevars
0 product2

You must perform the procedures in this section for each Downstream , use the following procedure to verify that the 

Spacevars
0 product2

works properly.

...

you must add. Make sure the FQDN for each Downstream 

Spacevars
0 product2

is different.

...

Info
title Note
The information to prepare a Downstream SBC applies to both the

Spacevars 0

...

longproduct and Spacevars 0

...

Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

...

Select Settings > Signaling Groups.

Make sure the Service Status for all signaling groups is Up.

Caption
0 Figure 1 Signaling Group Verification
Image Removed

...

product3 unless otherwise stated.

Info
When the SBC Edge is acting as the Downstream SBC and interacting with the SBC Core, the Key Identifier Length in the SRTP should be configured as "0". The SBC Core does not support MKI and ignores the Crypto lines which has the MKI parameter.

Install 

Spacevars
0 product2

and Perform Initial Setup

Note
title Caution
Perform this procedure only if you are creating a new  Spacevars 0 product2 for the Downstream role (a greenfield scenario).

Use the following procedure to install the 

Spacevars
0 product2

and perform the initial setup: Installing SBC 1000/2000

Info
title Note
For the Spacevars 0 product3 , use the following procedure to install the  Spacevars 0 product2 and perform the initial setup: Installing SBC SWe Lite

Run Easy Config Wizard on Downstream

Spacevars
0 product2

Prepare Downstream

Spacevars
0 product2

You must perform the procedures in this section for each Downstream 

Spacevars
0 product2

you must add. Make sure the FQDN for each Downstream 

Spacevars
0 product2

is different.

Info
title Note
The information to prepare a Downstream SBC applies to both the Spacevars 0 longproduct and Spacevars 0 product3 unless otherwise stated.

Install 

Spacevars
0 product2

and Perform Initial Setup

...

title	Caution

...

Once your 

Spacevars
0 product2

is up and running, you must configure the

Spacevars
0 product2

...

to connect to the Proxy

Spacevars

Use the following procedure to install the 

Spacevars
0 product2

and perform the initial setup: Installing SBC 1000/2000

...

title	Note

...

.

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0

...

1. product

...

1. in the URL address bar. The Welcome to

   Spacevars
   0

...

1. company

   screen is displayed.
2. Review the Pre-Login message.
3. Enter the administrator User Name and Password configured during initial setup.
4. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

5. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

6. Select Tasks > SBC Easy Setup > Easy Config Wizard.

7. In the Application field, select your application. This best practice configures SIP Trunk ↔ Microsoft Teams.

8. In the Teams Connection field, select Teams Downstream SBC.

   Caption
   0 Figure 1 Easy Configuration for Teams Downstream SBC
   Image Added

   
   

9. Configure the other fields in Step 1 and click Next.

10. In the SIP Trunk section, enter the information for the Branch 1 SIP Trunk provider.

    Note
    title Caution
    You must target the Proxy with an FQDN for the TLS to properly establish.

    
    

    Caption

Run Easy Config Wizard on Downstream

Spacevars
0 product2

Once your 

Spacevars
0 product2

is up and running, you must configure the

Spacevars
0 product2

to connect to the Proxy

Spacevars
0 product2

.

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0 product

   in the URL address bar. The Welcome to

   Spacevars
   0 company

   screen is displayed.
3. Review the Pre-Login message.
4. Enter the administrator User Name and Password configured during initial setup.
5. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

6. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

7. Select Tasks > SBC Easy Setup > Easy Config Wizard.

8. In the Application field, select your application. This best practice configures SIP Trunk ↔ Microsoft Teams.

9. In the Teams Connection field, select Teams Downstream SBC.

   Caption
   0 Figure 1 Easy Configuration Step 2 for Teams Downstream SBC
   Image RemovedImage Added

   
   

10. Configure the other fields in Step 1 and click Next.

    In the SIP Trunk section, enter the information for the Branch 1 SIP Trunk provider.

    Note
    title Caution
    You must target the Proxy with an FQDN for the TLS to properly establish.

    Caption
    0 Figure 1 Easy Configuration Step 2 for Teams Downstream SBC
    Image Removed

    Configure the other fields in the Microsoft Teams section and click Next.

11. Review your configuration information in Step 3 and click Finish.

    Caption
    0 Figure 1 Easy Configuration Step 3 for Teams Downstream SBC

    
    

...

1. Access a compatible web browser.
2. In the browser, enter the IP address of the 

   Spacevars
   0 product

   in the URL address bar. The Welcome to

   Spacevars
   0 company

   screen is displayed.
3. Review the Pre-Login message.
4. Enter the administrator User Name and Password configured during initial setup.
5. If the Acknowledge Pre-Login Message checkbox is displayed, click on it to acknowledge you have reviewed the pre-login information above. After initial login, this checkbox can be enabled and disabled via the Global Security Options. By default, this checkbox is configured as disabled.

6. Click Login. The main screen provides all WebUI functions, including tabbed options, menu tree, device name, and the last login date and time of the system.

7. In the WebUI, click the Diagnostics tab.

8. In the left navigation pane, click Test a Call.

9. .

10. In the WebUI, click the Diagnostics tab.

11. In the left navigation pane, click Test a Call.

12. Configure the parameters according to your SBC.

    Configure the parameters according to your SBC.

    • Use the following table to configure the parameters for a Proxy SBC.

      Caption

      0	Table
      1	Test Call for a Proxy SBC - Parameters

      ParameterValue

      Destination Number

      Number assigned to a Teams user.

      Origination/Calling Number

      Number assigned to a Local user.

      Call Routing Table

      The routing table that handles the call from the Proxy

      Spacevars
      0 product2

      .

      See the following example configuration of testing a call for a Proxy SBC.

      Caption
      0 Figure 1 Test Call for a Proxy SBC - Configuration
      Image Removed

      Use the following table to configure the parameters for a

      Central

      Proxy SBC.

      Caption
      0 Table 1 Test Call for a Central Proxy SBC - Parameters
      Parameter Value Destination Number Number assigned to a Teams user. Origination/Calling Number Number assigned to a Local user. Call Routing Table The routing table that handles the call from the Central Proxy Spacevars 0 product2 .

      See the following example configuration of testing a call for a Central Proxy SBC.

      Caption
      0 Figure 1 Test Call for a Central Proxy SBC - Configuration
      Image RemovedImage Added

      
      

    • Use the following table to configure the parameters for a Downstream SBC.

      Caption
      0 Table 1 Test Call for a Downstream SBC - Parameters
      Parameter Value Destination Number Number assigned to a Teams user. Origination/Calling Number Number assigned to a Local user. Call Routing Table The routing table that handles the call from the Downstream Spacevars 0 product2 .

      See the following example configuration of testing a call for a Downstream SBC.

      Caption
      0 Figure 1 Test Call for a Downstream SBC - Configuration

      
      

13. Click OK.

    Caption
    0 Figure 1 Place a Test Call - Example

    
    

...