Consumers - SBG6580 (v8.5.x): SIP Passthrough Setup

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SBG6580 (v8.5.x): SIP Passthrough Setup

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How do I setup SIP Passthrough in my SBG6580? 

When using a VoIP phone with the SBG6580, the SIP Passthrough option in the SBG6580 may need to be enabled in order for that 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 and SIP Passthrough in the SBG6580.

NOTE: If it is not known if SIP Passthrough should be enabled or disabled, please contact the VoIP phone manufacturer.

To 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 appears.

    NOTE: By default the LAN IP address is  If the default address has been changed, enter the custom address in the address box.
  2. On the Login page:
    a.   Enter admin in the Username field.
    b.   Enter motorola in the Password field.
    c.   Click the Login button.  The Home page appears.

    NOTE: On firmware version and later, the default admin password is required to be changed.  The Change User Password prompt will immediately appear after logging into the Web manager with the default admin password.  For assistance with the Change User Password screen, please refer to article # 18055 - SBG6580 (v.8.9.x): Prompt to Change Default Admin Login.
  3. Move the mouse-cursor over the Advanced tab and select the Options sub-link.  The Advanced - Options page appears.
  4. On the Advanced - Options page, NAT ALG Status section:
    a.   SIP - Check Enable.
    b.   Click the Apply button.




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