Exhibit 10.04

AMENDMENT NUMBER ONE TO THE WEST CORPORATION

STOCKHOLDER AGREEMENT

This Amendment Number One (the “Amendment”) to the Stockholder Agreement of West
Corporation, a Delaware corporation (the “Company”) is made as of April 12, 2011
by and among:

 

  (i) the Company;

 

  (ii) Thomas H. Lee Equity Fund VI, L.P., Thomas H. Lee Parallel Fund VI, L.P.,
Thomas H. Lee Parallel (DT) Fund VI, L.P., THL Equity Fund VI Investors (West),
L.P., THL Coinvestment Partners, L.P., Putnam Investments Holdings, LLC, Putnam
Investments Employees’ Securities Company III LLC, THL Equity Fund VI Investors
(West) HL, L.P., and each Affiliate of such Persons executing this Agreement
from time to time and listed as a THL Investor on the signature pages hereto
(collectively, the “THL Investors”);

 

  (iii) Quadrangle Capital Partners II LP, Quadrangle Capital Partners II-A LP
and Quadrangle Select Partners II LP, and each other Affiliate of such entities
executing this Agreement from time to time and listed as a Quadrangle Investor
on the signature pages hereto (collectively, the “Quadrangle Investors” and,
together with the THL Investors and the Quadrangle Investors, the “Investors”);
and

 

  (iv) Gary L. West and Mary E. West (the “Founders”).

Recitals

A. The Company, the Investors, the Founders and the Managers are party to the
Stockholder Agreement, dated as of October 24, 2006, with respect to their
ownership of shares of Common Stock of the Company (the “Stockholder
Agreement”).

B. In order to clarify the terms of certain estate planning provisions of the
Stockholder Agreement, the parties have agreed to amend the Stockholder
Agreement as provided herein.

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Amendment

NOW, THEREFORE, in consideration of the premises and for other good and valuable
consideration, the sufficiency and receipt of all of which is hereby
acknowledged, the parties hereto hereby agree as follows:

 

  1. Section 3.2.2 of the Stockholder Agreement is amended and restated to read
as follows:

 

  3.2.2. Estate Planning. Any holder of Shares who is a natural Person may
Transfer any or all of such Shares (a) to, or for the benefit of, any member or
members of the Immediate Family of such holder or (b) to a trust or entity
formed for estate planning purposes or to a private foundation for the benefit
of such holder and/or any member or members of the Immediate Family of such
holder so long as such holder or a member of the Immediate Family of such holder
serves as trustee for such trust or in an equivalent capacity with respect to
any such private foundation or other entity and provided that the trust
instrument or other documents governing such trust, private foundation or other
entity provides that such holder (or a member of the Immediate Family of such
holder), as trustee (or equivalent), shall retain sole and exclusive control
over the voting and disposition of such Shares until the termination of this
Agreement or until the death of such holder (any such Transferee pursuant to
(a) or (b), a “Section 3.2.2 Transferee”), and any such Section 3.2.2 Transferee
may Transfer any or all of such Shares to the prior holder of the Shares or to
any natural Person, trust or private foundation to whom or to which the prior
holder of the Shares would be (or would have been at the time of the Transfer to
the Section 3.2.2 Transferee) permitted to Transfer Shares pursuant to this
Section 3.2.2.

 

  2. This Amendment and all claims arising out of or based upon this Amendment
or relating to the subject matter hereof shall be governed by and construed in
accordance with the domestic substantive laws of the State of Delaware without
giving effect to any choice or conflict of laws provision or rule that would
cause the application of the domestic substantive laws of any other
jurisdiction.

 

  3. Capitalized terms used herein and not otherwise defined shall have the
meanings for such terms as set forth in the Stockholder Agreement.

 

  4. In all other respects, the terms and conditions of the Stockholder
Agreement remain unchanged.

 

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IN WITNESS WHEREOF, each of the undersigned has duly executed this Agreement (or
caused this Agreement to be executed on its behalf by its officer or
representative thereunto duly authorized) as of the date first above written.

 

THE COMPANY:   WEST CORPORATION  

/s/ David C. Mussman

  Name:   David C. Mussman   Title:   Executive Vice President, Secretary    
and General Counsel

 

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THL INVESTORS:     THOMAS H. LEE EQUITY FUND VI, L.P.     By: THL Equity
Advisors VI, LLC, its general partner     By: Thomas H. Lee Partners, L.P., its
sole member     By: Thomas H. Lee Advisors, LLC, its general partner    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer  
  THOMAS H. LEE PARALLEL FUND VI, L.P.     By: THL Equity Advisors, VI, LLC, its
general partner     By: Thomas H. Lee Partners, L.P., its sole member     By:
Thomas H. Lee Advisors, LLC, its general partner    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer  
  THOMAS H. LEE PARALLEL (DT) FUND VI, L.P.     By: THL Equity Advisors VI, LLC,
its general partner     By: Thomas H. Lee Partners, L.P., its sole member    
By: Thomas H. Lee Advisors, LLC, its general partner    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer  
  THL COINVESTMENT PARTNERS, L.P.     By: Thomas H. Lee Partners, L.P., its
general partner     By: Thomas H. Lee Advisors, LLC, its general partner    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer

 

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    THL EQUITY FUND VI INVESTORS (WEST), L.P.     By: THL Equity Advisors VI,
LLC, its general partner     By: Thomas H. Lee Partners, L.P., its sole member  
  By: Thomas H. Lee Advisors, LLC, its general partner    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer  
  PUTNAM INVESTMENTS HOLDINGS, LLC     By: Putnam Investments, LLC, its managing
member    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer  
  PUTNAM INVESTMENTS EMPLOYEES’ SECURITIES COMPANY III LLC     By: Putnam
Investment Holdings, LLC, its managing partner     By: Putnam Investments, LLC,
its managing member    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer  
  THL EQUITY FUND VI INVESTORS (WEST) HL, L.P.     By: THL Equity Advisors VI,
LLC, its general partner     By: Thomas H. Lee Partners, L.P., its sole member  
  By: Thomas H. Lee Advisors, LLC, its general partner    

/s/ Charles Holden

    Name: Charles Holden     Title: Managing Director/Chief Financial Officer

 

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QUADRANGLE INVESTORS:   QUADRANGLE CAPITAL PARTNERS II LP  
By: Quadrangle GP Investors II LP, its general partner   By: QCP GP Investors II
LLC, its general partner  

/s/ Michael Huber

  Name: Michael Huber   Title: President and Managing Principal   QUADRANGLE
CAPITAL PARTNERS II-A LP   By: Quadrangle GP Investors II LP, its general
partner   By: QCP GP Investors II LLC, its general partner  

/s/ Michael Huber

  Name: Michael Huber   Title: President and Managing Principal   QUADRANGLE
SELECT PARTNERS II LP   By: Quadrangle GP Investors II LP, its general partner  
By: QCP GP Investors II LLC, its general partner  

/s/ Michael Huber

  Name: Michael Huber   Title: President and Managing Principal

 

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THE FOUNDERS:    

/s/ Gary West

    Name: Gary L. West, individually    

/s/ Mary West

    Name: Mary E. West, individually

 

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