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SIP UA enables analog phones at each FXS port to make IP or PSTN calls. Each FXS port represents an instance of a SIP user agent. Once configured, each FXS port registers to the configured domain using outbound proxy. If registration is successful, the phone at the FXS port will have a dial tone.

Note

You must enable SIP UA service to configure SIP UA ports.

  1.  Choose VoIP > SIP > SIPUA.

  2. Select the Enable SIPUA checkbox and click Submit.

    A message indicates that service will be temporarily interrupted.

  3. Click OK to confirm. Fields on the FXS/Phone Port Settings - Basic page become active.

  4. Configure settings using the information in the following table as a guide.

    FXS/Phone Port Settings - Basic

    ItemDescription

    Global Configuration

    Settings apply to all ports.

    Enable SIPUA

    Select the Enable SIPUA checkbox if it is not already checked.

    Use SIP Username for SIP authentication

    Select the Use SIP Username for SIP authentication checkbox to enable SIP authentication when authenticating an FXS port.

    Codec Preference

    Choose a codec type from the Codec Preference drop-down list.

    This selects the codec that is used by all FXS ports for encoding analog data. The codec must be part of the negotiated codec list:

    G.711 ulaw

    G.711 alaw

    G.729

    G.728

    G.726,16 Kbps

    G.726, 24 Kbps

    G.726, 32 Kbps

    G.726, 40 Kbps.

    Use preferred codec only

    Select the Use Preferred codec only checkbox to specify that the system use only the preferred codec type.

    This specifies that only the preferred codec is used when the FXS places a call.

    Use REFER for transfer

    Select the Use REFER for transfer checkbox if your VoIP switch supports REFER requests as outlined in RFC3515 to perform call transfer.

    Use SIP INFO for hook-flash

    Note: Available on 

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     250 only.

    Select the Use SIP INFO for hook-flash check-box to send SIP INFO to notify VoIP switch.

    Register with proxy

    Select the Register with proxy checkbox to instruct each configured FXS port to send a REGISTER request to the configured domain through a configured outbound proxy. If this checkbox is not checked, FXS ports will not register.

    Note: Some VoIP deployments use static registration for the FXS ports and do not require port registration.

    Enable Dry-Closure (FXO-FXS)

    Note: Available on

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    250 only.

    Specifies FXS port 4 to connect to the FXO port (known as “dry closure”) during a power failure.

    For systems licensed with less than four ports, user phones are connected to FXS ports 1-3 and can be completely disconnected from the FXO port to allow dry closure.

    To connect the FXO port to one of the FXS phones during a power failure, swap the port 1 license to port 4.

    Port Level Basic Configuration

    This section includes a set of parameters for each port. Use the scroll bar on the right to access all eight port configuration windows.

    Hook state

    Displays dynamic status of a given FXS port:

    • On-Hook

    • Off-Hook

    • In-Call

    SIP Display Name

    Specifies the SIP display name.

    SIP UsernameIdentifies the analog phone connected to the FXS port. This value can be either a name or a number that callers use to reach the analog phone.

    SIP Authentication name

    Specifies the name used by the FXS port to authentication itself if the Use SIP Username for SIP authentication box is NOT checked in Configuring Basic SIP UA FXS Settings.

    PasswordSpecifies the passwords to authenticate the SIP UA against the softswitch or outbound proxy.
    Edit PasswordSelect the Edit Password check-box to set a new password.
    PasswordEnter the password to authenticate the SIP UA against the softswitch or outbound proxy.
    Confirm PasswordConfirm the new password by entering it again.

  5. Click Submit.

    Your ports are now registered on the FXS/Phone Port Settings - Basic page. You can now make and receive calls on the phones that are connected to the configured FXS ports.

  6. Choose SIP UA from the Configuration Menu to open the FXS/Phone Port Settings page.

    Note

    If your changes are not visible on the page, click SIP UA again from the Configuration Menu to refresh the page. The Port Configuration state should change from Unregistered to Registered. If the state is still unregistered, check with your VoIP provider to confirm that the Authentication Name and Password is valid.


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