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Exhibit 24
POWER OF ATTORNEY
KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints William Zerella and Robert J. Zollars, and each of them, his true and
lawful attorney-in-fact to:
(1) execute for and on behalf of the undersigned, in the undersigned's
capacity as a representative of Vocera Communications, Inc. ("Company"),
any and all Form 3, 4 or 5 reports required to be filed by the undersigned
in accordance with Section 16(a) of the Securities Exchange Act of 1934, as
amended ("Exchange Act"), and the rules thereunder with respect to
transactions in securities of Vocera Communications, Inc.;
(2) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and execute any
such Form 3, 4 or 5 report and timely file such report with the U.S.
Securities and Exchange Commission and any stock exchange or similar
authority; and
(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it
being understood that the documents executed by such attorney-in-fact on
behalf of the undersigned, pursuant to this Power of Attorney, shall be in
such form and shall contain such terms and conditions as such
attorney-in-fact may approve in his discretion.
The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform each and every act and thing
whatsoever requisite, necessary and proper to be done in the exercise of any of
the rights and powers herein granted, as fully to all intents and purposes as
the undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or her substitute or substitutes, shall lawfully do or cause
to be done by virtue of this Power of Attorney and the rights and powers herein
granted. The undersigned acknowledges that no such attorney-in-fact, in serving
in such capacity at the request of the undersigned, is hereby assuming, nor is
the Company hereby assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Exchange Act.
This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Form 3, 4 or 5 reports 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 foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of the 6th day of March, 2012.
/s/ Jay Spitzen
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Jay Spitzen