Mass SIP Ringing

Provides the ability to initiate a large number of calls synchronised to within a few tenths of a second.

  • Status
  • Deployed
  • End-users the application is for
  • Enterprise

The Session Initiation Protocol (SIP) provides a simultaneous ringing capability.   This capability rings several different phones at the same time.  When the call is answered from any of the phones that are ringing, the ringing on all phones stops.  This is a standard feature of SIP and is useful for ringing your fixed and mobile phone simultaneously, for example.

A Rhino customer utilised the simultaneous SIP ringing capability of Rhino to implement an IP-based financial trading desk.  This required many hundreds of phones to ring “at the same time” – within a couple of hundred milliseconds, so that all traders had the same opportunity to accept the call and thus make the trade.

The ability to make many simultaneous calls in this fashion has application on trading floors and other enterprise situations where recipients demand fair chances to taking the call.