The MS Teams SIGMA Script

Last Updated : Oct 16, 2023 |
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The following is a template for the SIGMA script used for the connection between the ASBCE and MS Teams. Use this template to create a text file on your PC.
In the sample script:
  • Replace each instance of <ASBCE_FQDN> with the public FQDN of the ASBCE.
  • Replace each instance of <ASBCE_IP_ADDRESS> with the public IP address to which DNS resolves the ASBCE FQDN above.
  • Replace <ASBCE_VERSION> with AVAYA SBCE-<version where <version> is the Version value shown on the ASBCE's initial menu after logging in. See Get the ASBCE Version.
within session "all" 
{
act on message where %DIRECTION="OUTBOUND" and %ENTRY_POINT="POST_ROUTING"
  {
       %SDP[1].regex_replace("a=sendonly","a=inactive");
       %SDP[1].regex_replace("a=recvonly","a=inactive");
  }
}
within session "all" 
{
act on message where %DIRECTION="OUTBOUND" and %ENTRY_POINT="POST_ROUTING"
  {
        %HEADERS["Contact"][1].URI.HOST = "<ASBCE_FQDN>";
        %HEADERS["Record-Route"][1].URI.HOST = "<ASBCE_FQDN>";
  }
}
within session "all" 
{
act on request where %DIRECTION="OUTBOUND" and %ENTRY_POINT="POST_ROUTING"
  {
    %HEADERS["X-MS-SBC"][1] = "<ASBCE_VERSION>";
   }
}
within session "all" 
{ 
act on message where %DIRECTION="INBOUND" and %ENTRY_POINT="PRE_ROUTING" 
  {
    %HEADERS["Request_Line"][1].URI.HOST = "<ASBCE_IP_ADDRESS>";
        if (%HEADERS["Record-Route"][1].regex_match("<ASBCE_FQDN>")) then
        {
                %HEADERS["Record-Route"][1].regex_replace("<ASBCE_FQDN>","<ASBCE_IP_ADDRESS>");
        }
         if (%HEADERS["Record-Route"][2]. regex_match("<ASBCE_FQDN>")) then
        {
                %HEADERS["Record-Route"][1].regex_replace("<ASBCE_FQDN>","<ASBCE_IP_ADDRESS>");
        }
         if (%HEADERS["Route"][1].regex_match("<ASBCE_FQDN>")) then
        {
                %HEADERS["Route"][1].regex_replace("<ASBCE_FQDN>","<ASBCE_IP_ADDRESS>");
        }
         if (%HEADERS["Route"][2].regex_match("<ASBCE_FQDN>")) then
        {
                %HEADERS["Route"][2].regex_replace("<ASBCE_FQDN>","<ASBCE_IP_ADDRESS>");
        }
    }
}
within session "INVITE" 
{
 act on response where %DIRECTION="OUTBOUND" and %ENTRY_POINT="POST_ROUTING"
    {
        if (%SDP[1].regex_match("c=IN IP4 0.0.0.0")) then
  {
       %SDP[1].regex_replace("c=IN IP4 0.0.0.0","c=IN IP4 <ASBCE_IP_ADDRESS>");
     }
  }
}

MS Teams SIGMA Script Additional values

You can use the MS Teams SIGMA script to perform optional number transformations. In the example below, the additional lines for the From, To and Request Line headers prefix matching numbers with +1.
act on message where %DIRECTION="OUTBOUND" and %ENTRY_POINT="POST_ROUTING"
  {
        %HEADERS["Contact"][1].URI.HOST = "<ASBCE_FQDN>";
        %HEADERS["Record-Route"][1].URI.HOST = "<ASBCE_FQDN>";
        %HEADERS["From"][1].URI.USER.regex_replace("^214","+1214");
        %HEADERS["To"][1].URI.USER.regex_replace("^719","+1719");
        %HEADERS["Request_Line"][1].URI.USER.regex_replace("719","+1719");
  }
Related links
Creating SIGMA Scripts