Please take a look at this http://lists.sip-router.org/pipermail/sr-users/2015-June/088669.html thread

2015-06-13 13:32 GMT+03:00 W5RTC <murugan.pandian@w5rtc.com>:
HI,

   how to handle  SIP-OVER-Websocket loab balancing (WebRTC)

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