Pages where confidential treatment has been requested are stamped “Confidential
Treatment

Requested and the Redacted Material has been separately filed with the
Commission,” and

places where information has been redacted have been marked with (***).

 

Exhibit 10.23M

TWENTIETH AMENDMENT

TO THE

CSG MaSTER SUBSCRIBER MANAGEMENT SYSTEM AGREEMENT

BETWEEN

csg SYSTEMS, INC.

AND

DISH NETWORK L.L.C.

This TWENTIETH AMENDMENT (this “Amendment”) is made by and between CSG Systems,
Inc., a Delaware corporation (“CSG”), and DISH Network L.L.C., a Colorado
limited liability company (“Customer”). This Amendment shall be effective as of
January 1, 2012 (the “Effective Date”). CSG and Customer entered into a certain
CSG Master Subscriber Management System Agreement (Document #2301656) entered
into effective as of January 1, 2010 (the “Agreement”), and now desire to
further amend the Agreement in accordance with the terms and conditions set
forth in this Amendment. If the terms and conditions set forth in this Amendment
shall be in conflict with the Agreement, the terms and conditions of this
Amendment shall control. Any terms in initial capital letters or all capital
letters used as a defined term but not defined in this Amendment shall have the
meaning set forth in the Agreement. Upon execution of this Amendment by the
parties, any subsequent reference to the Agreement between the parties shall
mean the Agreement as amended by this Amendment. Except as amended by this
Amendment, the terms and conditions set forth in the Agreement shall continue in
full force and effect according to their terms.

CSG and Customer agree as follows as of the Effective Date:

In connection with Customer’s migration to CSG’s Advanced Convergent Platform
(“ACP”), CSG shall provide Customer with a dedicated environment which will
consist of the common code base more particularly described in the Custom
Roadmap as provided in the Agreement and shall not include any additional CSG
Products and Services not identified in the Agreement (“Cycle D”). ********
******* ** *******, *** *** ****** ** *******, *** ****** *** ******** **
(*) ***** *** ********** ** ******* * ** **** *** ***, * ***** ******** *******,
** *** **** ** ********** ** *** ******** *********, ** ********* ** *******
*(*) *** ******* *** ******** ***** ********* ** *** ********* (*.*., ****
********** ******* **** *** ** ********’* ****** *********** *** ** *** ***
***** *** **** (*) *********** ** ***** * ***, ****** ** ******** *** ** ***
********** ********* ** *** ********* ** **** **** ********, *** *** *********
*** ****** ******* *********** ******** *** ** ********** * ** *** *** ***
*********) (“********** ** *** ******** *********”), *** (**) ***** ***
********* **** *** ******** ** ***** *** ********** ********** **** ********’*
******** **********.

 

1. The Parties agree that Customers’ use of Cycle D is based upon and subject to
the following assumptions and conditions:

 

  (a) ********** ** ** *** **** ** **** *********, ****** ***** ***** ********
*** ****** ********, ********* *** *** ******* ** ****** ***, *********
************, ********** ***** ******** (“***”), ****** ****, **********, **
****** ****** ****** ******** (*** ******** ** **** *********, “***** *****
****** ******** *** ********”), **** ** ******* ** ***** * ** **** **** ** *****
*. ** ********, ***** ***** ****** ******** *** ******** **** ******* ********
********* ********** ** ************* ** *********** ****, *** ** *********
********* *** **, *** ***** */* *******.

 

  (b) *** **** ****** ** ** **** ********* *** ***** ** **** ******** ***
********’* ********** ********** ******* (“***”) ************ (****/****) ***
***** * ********** ************ *** ***** **** *** ******** *** ********
******** ** *** ** ** *** ********* **** ** **** *********.

--------------------------------------------------------------------------------

*** Confidential Treatment Requested and the Redacted Material has been
separately filed with the Commission.

 

 

2. Upon the Completion of the Platform Migration, the parties agree that
Customer shall be on ******* * of 2012 of the Cycle A/B production release and,
depending upon the actual date of the Completion of the Platform Migration and
subject to Section 3 below.

 

3. ******* ***** **** ******** ***** **** *** ***** ** ***** ********** ****
******** ****, ******* ** *** ********* **********:

 

  (a) ******** ***** ******* ******* ****** ** *** ****** ** ******** *** *****
*** * ******* ***** **** ** **** **** *******-**** (**) **** ***** ** *** *****
*/* ********** *******. ******** ***** ******* ********* ***** *** *** *********
******** ****** ****** *** ****** *** *** *** ************ ** **** ** *** *****
* ********** ***********. **** ******** ********* ****** ** ********* ** ****
**********, *** ******* ***** ******** ***** ** * ********* ******** *******
**** ****** *** *******-**** (**) **** ***** ** *** ***** */* **********
*******. “******** ******” ***** **** *** ********* **** *** ***** ******** **
*** ******* **** ** *** *** ************ ***** ******** ***** *** ******* ****
**** **********.

 

  (b) *** ******** *** ***** ** ****** *** ******* ***** * ******* ***
*********** ****** ******* *** **** ***** ** ********** ****** *** ********
******. ********* ** *** **** ***, *** *** **** ** ***** *** *** ** *** *******
********** ******* **** ******** *** *** ** ******* ** ****-**** *** *** ** ***
***** ******* **** ******** ** ******* ** **********. ** *** ***** **** *** ****
*** ******* *** ******* ** ***** *** *** ** *** ******* **** ******** ** *******
** **********, *** *** ******** ***** ** ****** *** ********** ******* ********
** ******* **, ******** “**********” ** *** *********, ** ******* *** ******.

 

  (c) ******** ***** ********* *** ******* ******* ** ********** **** (***** **
***** *******) **** *** *** ************ ****** *** (*) ***** ** *** ****
******* ** ***** */* ********** **** ***** ******** **** ***** *.

 

  (d) ******** ***** ********* *** ******* ******* ** ***** */* ********** ****
(***** ** ***** *******) **** *** ***** * ********** *********** ******
*****-**** (**) **** ** *** */* ******* ********** ****.

 

  (e) ******** **** *** ******* ** * ******** ****** (**** * “******** *******”)
** ********** **** **** ********* ***** *** ** *********** ** ***** * **********
*********** ****** **** ******** (**) **** ***** *** ********* *******
********** **** *** ***** */*.

 

  (f) ******** ******** ***** *** ** ******* ** ********, **** *** ********* **
*** ***** **** ***** ******* ***** **** ** ******** **** ******* * ** ****.

 

  (g) ******* * ** **** ***** ** *********** **** *** *** ************ *** ***
***** * ********** *********** ** ***** **** ******** **, ****.

 

  (h) ***** * ********** *********** ***** *** ** **** **** *** ******* (*****
** *****) ****** *** ***** */* **** ****, **** *** ********* **** *** ***** ****
***** ******* **** ** ******** **** ******* * ** ****.

 

  (i)

********/******** * ** ***** ********** ****** **** *** ** ********* ****** ***
******** ****** ** ***** * *** *** ************. ********** ****** ********
****** *** ******** ****** **** ** ******* ** ***** */* **** ** ** ***********

 

2 / 4

--------------------------------------------------------------------------------

***   Confidential Treatment Requested and the Redacted Material has been
separately filed with the Commission.

 

  **** ***** * ****** ******* **** **********. ********/******** * ** *
********** ****** ***** ** ***** * ****** *** ********** ******** ****** ****
******* **** ******* **** ** ********* ** ** ***** ** ***** ***** ***
************** ** ***** *. ******* ******* **** ****** ********** *** ****
*********** ** *** *** ******* ***** */* **** **** **** ** ******* ** ********’*
********** *** ************ ***** ** ******* *** ***** **** ** ********* **
********** **** *** ****** ******* *** **** *********** ** ***** *.

 

  (j) ******** ****** (“**”) ******* ********** *** ******** ****** **** **
******** *** ******* ** ** ********** **** *** ********* ***** *** *** ********
**** ** ****** ******* *****. *** **** **** ********* ** ******** * **** **
***** ******* *** *** ********** ********* *** ********* *** ******.

 

  (k) *** *** ******** ***** **** ******** ***** ** ***** **** ******** ***
******* ********** ****** ******* *****, ***** *** ****** *,*** ***** ***
******* *******. ******** *** ******* ****** ** ****** ******* ***** ******* **
********** *** ***** ****** ** ********.

 

  (l) *** *** ******** ************** *** ********** ******* *** **** *******
******** **** ** ********* ****** *** ***** * **************.

 

  (m) ******** ****** ** ******* *** **** ******* ****** ** ***
********/******** * ******, ******* ** *** *********, ********** ** *** ***** *
********** ******* ***** ** ******* ** **********. ** *** ***** **** ********
*** *** ***** **** * ********/******** * ***** ****** ***** ** ******* ** ***
***** * ********** ***********, *** ****** *** ** ********* *** **** ****
********** ***** *** ******** * ***** ** ******** ** ******* ** * ******** * **
* *****. ** *** ***** **** ******** *** *** ** *** ******** ***** ** ** ***
******** ***** ** ********** ** *** *****, *** *** ******** ***** ** ******* ***
****** ** ********* *** ******* ******** ** ******* **, ******** “**********” **
*** *********. *** *********** ******** ****** ***** *** ** ********* ** ***
***** ********** ******** ** *** ******* *** ********/******** ******
**********.

 

4. Schedule H, entitled “CSG Systems, Inc. Business Continuity/Disaster Recovery
Plan” will only apply to CSG production systems running on the particular CSG
production code applicable to Customer at the time of disaster or recovery
exercise.

 

5. CSG and Customer agree to amend Schedule F, Fees, CSG Services, Section I,
entitled “Processing,” subsection E.4, entitled “Database Maintenance and
Programming Request,” as follows:

 

Description of Item/Unit of Measure

   Frequency    Fee

*) ******** **** ***** * ******** (****** (**) ******* ******** ** ****) **** *

   ******* ****
****    ***,***.**

**** *: ** *** ***** **** ******** ** *** ******** ** *** ** ******** **, ****
***** **** ****** ****** ****** ** ***, *** ****** ** ******* * ****** **
********’* **** ******* ******* **** **** ** ******** *** *** ******** ****
***** * *******.

 

3 / 4

--------------------------------------------------------------------------------

*** Confidential Treatment Requested and the Redacted Material has been
separately filed with the Commission.

 

IN WITNESS WHEREOF the parties hereto have caused this Amendment to be executed
by their duly authorized representatives.

 

DISH Network l.l.c.        CSG SYSTEMS, INC. By:  

/s/ Michael K. McClaskey

   By:  

/s/ Michael J. Henderson

Name: Michael K. McClaskey      Name: Michael J. Henderson Title:   Senior Vice
President and Chief Information Officer      Title:   EVP Sales & Marketing
Date:   1-12-12      Date:   1/13/12

 

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