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.

    The SIP UA process will automatically bind to the last IP address of the configured ALG LAN network. Make sure this IP is not in use by another device on the LAN. This IP can be changed on the SIP UA Advanced page.

  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

    When selected, the value configured for the port's username is used for the port's registration request.

    Codec Preference

    Choose a codec type from the Codec Preference drop-down list. Edgemarc chooses this codec when offered by the far end regardless of the order of appearance in the SIP SDP.

    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 ulawG.711 alawG.729G.728G.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.

    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)

    EdgeMarc 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 display name for outbound calling party name purposes.

    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. This username is added to the EdgeMarc's client list for call routing.

    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 Global Settings.

    PasswordSpecifies the passwords to authenticate the SIP UA against the softswitch or outbound proxy.

  5. Click Submit.

    Your ports are now registered on the FXS/Phone Port Settings - Basic page. 

    After a few moments, the EdgeMarc will be ready to place and receive calls on the configured ports.

    If the digits supplied on calls from the SIP provider do not exactly match the SIP username configured on the FXS ports the digit manipulation may be performed on the Configuring VoIP ALG Settings.

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

    Note

    Refresh the page to view the registration status of the port.