Configure SIP Settings

If your network supports SIP, you can use it to connect calls on your system.

Procedure

  1. In the system web interface, go to Call Configuration > SIP.
  2. Configure the following settings:
    Setting Description
    Enable SIP Enables the system to make and receive SIP calls.
    Registration Status Read-only setting shows if your system is registered to a SIP server.
    SIP Server Configuration Specifies whether to automatically or manually set the SIP server’s IP address.

    If you select Auto, you can’t edit the Transport Protocol, Registrar Server, and Proxy Server settings. If you select Specify, you can edit these settings.

    Transport Protocol Sets the protocol your system uses for SIP signaling (your SIP network determines which protocol is required).
    • Auto: Enables automatic negotiation of protocols in the following order: TLS, TCP, and UDP. This is applicable only when using a proxy server.

      For unregistered systems, if you set the Transport Protocol to Auto, the order is TCP then UDP. TLS is not included.

    • TLS: Provides secure SIP signaling. TLS is available only when you register your system with a SIP server that supports it. If you set this option, your system ignores TCP/UDP port 5060. Poly recommends you use the TLS setting when possible.
    • TCP: Provides reliable transport via TCP.
    • UDP: Provides best-effort transport via UDP.
    Force Connection Reuse

    Disabled by default (recommended).

    When disabled, the system uses an ephemeral source port for outgoing SIP messages. When enabled, the system uses the active SIP listening port as the source port (5060 or 5061, depending on the negotiated SIP transport protocol in use).

    You can use this setting to establish correct operation with remote SIP peer devices, which require that the source port match the contact port in SIP messages.

    BFCP Transport Preference Controls content sharing negotiation behavior. When you use the Binary Floor Control Protocol (BFCP), a relationship is established between the floor control server and its clients. What you set here determines how network traffic flows between the server and clients.
    Note: TCP is typically slightly slower but more reliable than UDP. Some deployments don’t support it, such as with session border controllers (SBCs).
    • Prefer UDP: (Default) Starts resource sharing using UDP but falls back to TCP if needed.
    • Prefer TCP: Starts resource sharing using TCP but falls back to UDP if needed.
    • UDP Only: Shares resources only using UDP. If UDP is unavailable, your system can’t share content in a separate video stream.
    • TCP Only: Shares resources only through TCP. If TCP is unavailable, your system can’t share content in a separate video stream.
    Sign-in Address The SIP address or name of the system (for example, mary.smith@department.company.com). If you leave this blank, the system IP address is used for authentication.
    User Name The user name for authenticating your system with a SIP registrar server (for example, marySmith). If the SIP proxy requires authentication, you can’t leave the user name and password blank.
    Password The password associated with the user name for authenticating your system with a SIP registrar server.
    Registrar Server

    The IP address or FQDN of the SIP registrar server. If you register a remote system with an edge server, use that server’s FQDN.

    By default, the system sends SIP signaling to ports 5060 (TCP) and 5061 (TLS) on the registrar server.

    Enter the address and port using the following format: <IP_Address>:<Port>.

    The <IP_Address> can be an IPv4 address or an FQDN such as servername.company.com:5060.

    Proxy Server The IP address or FQDN of the SIP proxy server. If you leave this field blank, the system uses the registrar server address. If you also leave the SIP registrar server field blank, there is no SIP proxy server to configure.

    By default, the system sends SIP signaling to ports 5061 (TLS) and 5060 (TCP) on the proxy server.

    The syntax for this setting is the same as the registrar server.

    Registrar Server Type Specifies the type of SIP registrar server you’re using.
  3. Select Save.