POWER OF ATTORNEY
The undersigned, as a Section 16 reporting person of RingCentral, Inc. (the "Company"), 
hereby constitutes and appoints Bruce Johnson, John Marlow and Theresa Medina, and each 
of them, the undersigned's true and lawful attorney-in-fact to:
1. complete and execute Forms 3, 4 and 5 and other forms and all amendments thereto as 
such attorney-in-fact shall in her discretion determine to be required or advisable 
pursuant to Section 16 of the Securities Exchange Act of 1934 (as amended) and the 
rules and regulations promulgated thereunder, or any successor laws and regulations, 
as a consequence of the undersigned's ownership, acquisition or disposition of 
securities of the Company; and
2. do all acts necessary in order to file such forms with the U.S. Securities and Exchange 
Commission, any securities exchange or national association, the Company and such other person 
or agency as the attorney-in-fact shall deem appropriate.
   The undersigned hereby ratifies and confirms all that said attorneys-in-fact and agents 
shall do or cause to be done by virtue hereof.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not 
assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply
 with Section 16 of the Securities Exchange Act of 1934 (as amended).
   This Power of Attorney shall remain in full force and effect until the undersigned is no 
longer required to file Forms ID, 3, 4 and 5 with respect to the undersigned's holdings of 
and transactions in securities issued by the Company, unless earlier revoked by the undersigned 
in a signed writing delivered to the Company and the foregoing attorneys-in-fact.
   IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of 
this 24 day of September, 2013.
Print Name: ELCA, LLC
Signature:        /s/ Sandra Shmunis, Managing Member of ELCA, LLC