1. Choose VoIP > SIP > SIP GW.
  2. Scroll to Register with SIP Server.
  3. Configure settings using the information in the following table as a guide.

    SIP FXO/Line Port SIP Server Configuration Fields

    ItemDescription

    SIP Server Settings

    Register with SIP server

    Select the Register with SIP server checkbox to register the FXO/GW with the SIP server using Override SIP FROM as SIP user name.

    Override FROM Username (To IP Network)

    Enter a message to override the system default SIP message FROM field. The FXO/GW registers with this name.

    Note: When the Override FROM field is specified with the SIP username, it replaces Dial Out Prefix and CallerID.

    Sip Authentication Name

    Enter a name and password in the SIP Authentication Name and Password fields only if the SIP FXO/Line port needs to be authenticated.

    Tip: Override the FROM domain name on the ALG Trunking Configuration page under Header Transformation. Choose VoIP > SIP > ALG and refer to Configuring Bandwidth Settings for H.323.

    Password

    (Optional) Enter the password to authenticate the SIP FXO/Line port against the SIP softswitch or outbound proxy. This field is only needed if SIP FXO/Line port must be authenticated.

    PSTN CO Auto-Disconnect timer (sec)

    Enter the time in seconds for the PSTN CO to terminate the connection.

    This specifies the time after the SIP caller has hung up for the PSTN CO line to terminate the connection when the call originated from the PSTN through the FXO port.

    The time is usually 12-13 seconds. During this defined time value, the FXO port is not be available for making any outbound calls to the PSTN.

    Override FROM Display Name (To IP network)

    Enter a display name to override the default “anonymous” display name.

    If an override display name is not configured, the system uses information received from the PSTN as part of the CallerID by default. If CallerID feature is not present on the PSTN line, the default is “anonymous.”

  4. Proceed to Configure SIP Gateway FXO Ports.