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How to get MRAS IP (STUN/TURN server)when using UCWA API for skype for business RRS feed

  • Question

  • I am trying to write and application to join conf Anonymously, I retrieve the MediaRelayToken and I get the "host" but when I try to either send a GET request on that IP or try to do STUN binding it fails, I cannot figure out what I am doing wrong, please help.

    Below is the seq 

    GET https://webpoolblu0b05.infra.lync.com/ucwa/psanon/v1/applications/<ID>/communication/mediaRelayAccessToken

    Response is something like this

       "mediaRelay": [
                {
                    "host": "mediaedge0B.online.lync.com",
                    "location": "Internet",
                    "tcpPort": 443,
                    "udpPort": 3478,
                    "_links": {
                        "self": {
                            "href": "/ucwa/psanon/v1/applications/103264518109/communication/mediaRelayAccessToken"
                        }
                    },
                    "rel": "mediaRelay"
                },
                {
                    "host": "sipedgeBLU0B.infra.lync.com",
                    "location": "Intranet",
                    "tcpPort": 443,
                    "udpPort": 3478,
                    "_links": {
                        "self": {
                            "href": "/ucwa/psanon/v1/applications/103264518109/communication/mediaRelayAccessToken"
                        }
                    },
                    "rel": "mediaRelay"
                }
            ]


    But when I do get on this mediaedge0B.online.lync.com, I do not get any response. Nor do I get any response when I send a STUN binding request. Am I missing a step to actually get a MRAS?

    Friday, June 23, 2017 6:42 PM

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