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SBG7600AC2: SIP Passthrough Setup

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How do I setup SIP Passthrough in my SBG7600AC2 gateway?
When using a VoIP phone with the SBG7600AC2, the SIP Passthrough option in the SBG7600AC2 may need to be enabled for the phone to have full functionality.  In other situations, it may be recommended by the VoIP phone manufacturer to disable SIP Passthrough.  By default, SIP Passthrough is enabled.  This document describes how to enable SIP Passthrough in the SBG7600AC2.

NOTE: If it's unknown that SIP Passthrough should be enabled or disabled, please contact the VoIP phone manufacturer.

Enable SIP Passthrough

  1. Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter into the address box, and press the Enter key.  The Login page will appear.

    NOTE: A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager.  There is no risk in proceeding to the Web Manager. For instructions to by-pass the alert screen, refer to article # 18181 - Alert Message for Web Manager Access.

  2. On the Login page, enter admin in the User Name field.
  3. Enter password or a customized password in the Password field.

    NOTE: When using the default password to login, it may be required to set a unique password to proceed to the Web Manager.  For assistance with Web Manager Access, refer to article # 18386 – SBG7600AC2: Web Manager Access.

  4. Click the Apply button.  The System Basic Setup window will appear.

    User-added image

  5. On the System Basic Setup page, click the Firewall link on the top menu.  The Firewall Settings page will appear.
  6. On the Firewall Settings page, click the ALG link on the left-hand menu.  The Application Layer Gateway Settings page will appear.
  7. On the Application Layer Gateway Settings page, select the SIP box.
  8. Click the Apply button.  The Application Layer Gateway Settings page will refresh. 

    User-added image



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