13G Filing: Capital Research Global Investors and Sonus Networks Inc (SONS)

Page 4 of 4 – SEC Filing

Item 6 Ownership of More than Five Percent on Behalf of Another
Person: N/A

Item 7 Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on By the Parent Holding
Company or Control Person: N/A

Item 8 Identification and Classification of Members of the Group:
N/A

Item 9 Notice of Dissolution of Group: N/A

Item 10 Certification

By signing below, I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired and
are held in the ordinary course of business and were not
acquired and are not held for the purpose of or with the effect
of changing or influencing the control of the issuer of the
securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose
or effect.

Signature

After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this
statement is true, complete and correct.

Date: June 8, 2017

Signature: Timothy D. Armour***
Name/Title: Timothy D. Armour – Partner
Capital Research Global Investors

***By /s/ Liliane Corzo
Liliane Corzo
Attorney-in-fact

Signed pursuant to a Power of Attorney dated January 6, 2017
included as an Exhibit to Schedule 13G filed with the
Securities and Exchange Commission by Capital Research Global
Investors on January 10, 2017 with respect to Sprouts Farmers
Market, Inc.

CUSIP: 835916503 Page 4 of 4