You didn't confirm if Contact was added to OPTIONS for local requests.

In Teams Admin Center, do you have an enrolled SBC? What's the status of TLS, SIP OPTIONS and Enabled status?

What's the result of: kamcmd dns.lookup SRV _sips._tcp.sip.pstnhub.microsoft.com

Can you ping sip.pstnhub.microsoft.com?

On Mon, Dec 18, 2023 at 1:05 PM faisal.jamil.khan--- via sr-users <sr-users@lists.kamailio.org> wrote:

kamctl dispatcher dump
{
  "jsonrpc":  "2.0",
  "result": {
    "NRSETS": 1,
    "RECORDS":  [{
        "SET":  {
          "ID": 1,
          "TARGETS":  [{
              "DEST": {
                "URI":  "sip:sip.pstnhub.microsoft.com:5061;transport=tls",
                "FLAGS":  "IP",
                "PRIORITY": 3,
                "ATTRS":  {
                  "BODY": "socket=tls:172.31.19.8:5061;ping_from=sip:abcsbc.com",
                  "DUID": null,
                  "MAXLOAD":  0,
                  "WEIGHT": 0,
                  "RWEIGHT":  0,
                  "SOCKET": "tls:172.31.19.8:5061",
                  "SOCKNAME": null,
                  "OBPROXY":  null
                }
              }
            }, {
              "DEST": {
                "URI":  "sip:sip2.pstnhub.microsoft.com:5061;transport=tls",
                "FLAGS":  "IP",
                "PRIORITY": 2,
                "ATTRS":  {
                  "BODY": "socket=tls:172.31.19.8:5061;ping_from=sip:abcsbc.com",
                  "DUID": null,
                  "MAXLOAD":  0,
                  "WEIGHT": 0,
                  "RWEIGHT":  0,
                  "SOCKET": "tls:172.31.19.8:5061",
                  "SOCKNAME": null,
                  "OBPROXY":  null
                }
              }
            }, {
              "DEST": {
                "URI":  "sip:sip3.pstnhub.microsoft.com:5061;transport=tls",
                "FLAGS":  "IP",
                "PRIORITY": 1,
                "ATTRS":  {
                  "BODY": "socket=tls:172.31.19.8:5061;ping_from=sip:abcsbc.com",
                  "DUID": null,
                  "MAXLOAD":  0,
                  "WEIGHT": 0,
                  "RWEIGHT":  0,
                  "SOCKET": "tls:172.31.19.8:5061",
                  "SOCKNAME": null,
                  "OBPROXY":  null
                }
              }
            }]
        }
      }]
  },
  "id": 19731
}


My dispatcher settings.

i am unable to get the trunk up with Microsoft . Can someone guide me how to fix this issue?
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