Thirteenth Amendment to CSG Master Subscriber Management System



 Exhibit 10.20I 
 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 (***). 
 THIRTEENTH AMENDMENT 
 TO 
 CSG MASTER SUBSCRIBER MANAGEMENT SYSTEM AGREEMENT 
 BETWEEN 
 CSG SYSTEMS, INC.

 AND 
 COMCAST CABLE
COMMUNICATIONS MANAGEMENT, LLC 
 This Thirteenth Amendment (the “Amendment”) is made by and between CSG Systems, Inc., a Delaware
corporation (“CSG”) and Comcast Cable Communications Management, LLC, a Delaware Limited Liability Company (“Customer”). CSG and Customer entered into a certain CSG Master Subscriber Management System Agreement dated
March 17, 2004 (the “Agreement”), and now desire to 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 to the following as of the Effective Date: 
  

	1.	Customer desires to add Full Color processing to the Direct Solutions (print and mail) fees; therefore, Schedule F, Section III.A.II under CSG SERVICES shall be amended to
include the following fee for Full Color processing: 

  

					
	 Description of Item/Unit of Measure
	  	Frequency	  	Fee
	 E.     Full Color Processing – Front and/or Back Side of Each Physical Page (Note 18)
	  		  	
			
	 •        * – *,***,*** ******* ******** ***** *** *****
	  	********
****	  	$*.****
			
	 •        *,***,*** – **,***,*** ******* ******** ***** *** *****
	  	********
****	  	$*.****
			
	 •        **,***,*** – **,***,*** ******* ******** ***** *** *****
	  	********
****	  	$*.****
			
	 •        **,***,*** – **,***,*** ******* ******** ***** *** *****
	  	********
****	  	$*.****
			
	 •        **,***,*** * ******* ******** ***** *** *****
	  	********
****	  	$*.****
			
	 F.     Full Color Processing – Ad Pages (Note 19)
	  	******* ****	  	*****

 Note 18: Full Color is available on both sides of each physical statement page. *** ***
***** ** ******** ******* ********’* ***** ******** **** ***** ** * ******* ***** ********** ** *** ****** ****** ** ******** ***** **** ******** ***** ********** (*.*. *** *** ** ******** ******* *** ******** **** ******** ***** ** ***)
“**** ***** ********** ***”. The parties agree to execute a separate Statement of Work (“SOW”) for the development and implementation of Full Color ***** *** ******** #*******. 
 Note 19: *** ************* ******** *** ******* **** ********** ****** ** *** ***** *** ** ***** *** *****/***** ***** **********, ***** **
********* ** ******** * ** **** *********. **** ********* ** ******** ********** ** **** ***** **********, **** ***** ** **** ******* ***** ** ******** ******** ** **** ******* *., ***** **** ****** ****** ** ********. 








	2.	******** ***** ** ******* ** *** ********* ******** ******** (*** “******* **********”) ********** ** **** ***** **********: 

  

			
	 •        ****/**** ******** **** **** ***** ********** *****
(************
 ** *** ******** ******* ******** **, ****)
	  	$*,***,***
		
	 •        **** ******** **** **** ***** ********** *****
(******** **, ****
 ******* ******** **, ****)
	  	$*,***,***
		
	 •        **** ******** **** **** ***** ********** *****
(******** **, ****
 ******* ******** **, ****)
	  	$***,***

 ************ ** *** ******* ********** ***** ** ********** ** *** ******** *** ****** ******
******* *** *** **** ***** ********** *** ** ******* ** ********* * ***** *** *** ********** ******** **** ******. ** ********, ** *** ***** *** ********** **** ******* ***** *****/***** ***** ********** ** ******** ** ********* * *****, ****
“********” **** ***** ********** *** ******* ***** **** ** **** *** ******** ** ********** *** ******* **********. ** *** ***** *** ******* ********** ******* *** ****** ****** ****** ********* *** “********” **** *****
********** *** *** ********** ******* ***** *****/***** ***** ********** ** ******* ** ********* *, *** ***** ****** *** ******* ******* ** ********* * ***** *** *** ******** *********** ******. ** *** ***** ******** ** ***** ***** ** *** *******
**********, **** *** ***** ******* ******** *** ****** ******** ** **** *** ******* **********. ** *** ***** ********’* ****** ****** ******, ********* *** “********” **** ***** ********** *** *** ********** ******* ***** *****/*****
***** ********** ** ******* ** ********* *, ******* *** ******* **********, **** *** ****** ** ***** *** ****** ****** ****** ********* *** “********” **** ***** ********** *** *** ********** ******* ***** *****/***** ***** ********** **
******* ** ********* *, ******* *** ******* ********** **** ** **** ** **** ******* *** ******* ********** ** *** ********* ******** **** ******. All invoices shall be paid in accordance with the payment terms set forth in the Agreement. For
clarity, the following examples are offered: 
  

	 	a)	****** *** ******** ****** ****/****, ******** ** ******** $*,***,*** ** ****** **** ***** ********** ****. *** ******* ********** ** $*,***,*** *** *** ***** ** ******** ** *******
******** ** ********** $***,*** ***** ***** ** ******** **/**/****. 

  

	 	b)	****** *** ******** ****** ****/****, ******** ** ******** $*,***,*** ** ****** **** ***** ********** ****. *** ******* ********** ** $*,***,***. ********’* ******* **********
*** *** **** ******** **** ****** ***** ** ******* ** $***,*** ** $*,***,***. ********’* ****** **** ***** ********** **** ** *** **** ******** **** ****** **** $*,***,***. *** ***** ** ******** ** ******* ******** ** ********** $***,*** *****
***** ** ******** **/**/****. 

  

	 3.
	 ***’* ******* ****** *** ******* ******** ** *** **** ** *** ******** ***** ******* *** **** ** *** ******* *****. ****, *** ********
**, **** ******* **** ********* *** ******** ********* **** ******** **, **** ******* ******** **, ****. ** *** ***** *** *** ***** ** *** **** ***** ********** **** *** *** ********** ******* *** ***** ** ********* * ***** *** *** ********** **
**** *** ******* ********** *** *** ********** ******, *** ***** ********* *** ****** ****** ** ********* ***** **** **** ******* **** **** ***** *** *** ****** **** ******** **** ******* ******** **** ** *** ********** ****** (“******** ***********”), ********* *** **** *****
********** **** *** **** ********* **** ****** *** ******* **** ****** ** ** ** *** **** ******** ** ******** *** ******** ** *********** ** ******** *** *** ******* ********** *** *** ********** ******. *******, ** *** ***** ** ********* * *****,
** ** ******** *********** ****** *** *** ** ******** ********** ***** ***** ***** ***** ********** ** *** **** ****** *** ******** *********** ****** ******** ** ********* * *****, *** ***** ******* *** ******* **** ***** **** **** ******** ***
***** ********** ******* ***** *****/***** ***** ********** *** **** “********” ******* **** ** ******** *** ******** ** *********** ** ******** *** ********* *** ******* **********. *******, ** *** ******** *********** ** *********, ***
******* **** ** *** ******** *********** ** **** *** ***** *******’ ******* ********** **** *** ** ******** *** ********* ** *** *********** ** ********* ** *** ******* ********** ** *** ** *** ************ ********** ******.



  

	4.	 ** ************* ** *** ********* **** ***** **********, ******** ****** **** *** ***** ******** ** ** *** ********* ******** ** ***** *** **** ******** ***
********* ***********, ***** ***** 



  


					
		  	Page 2 of 3	  	4/28/08

 CONFIDENTIAL AND PROPRIETARY INFORMATION - FOR USE BY AUTHORIZED EMPLOYEES OF THE PARTIES HERETO
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**** ******* ***** ********* *********** *** ***** *** ******** *** ********, *** *** ******** ** *** *********. ** *** ***** *** ********* ******* ** **
********** ***** ** ***** ******* ** *** ******* ********** ******** ** ******* * ** **** *********, ******** ****** ** ** ****** *** *** *** *********** ****** ***** ******* **********. 


  

	5.	******** **** ****** **** *** ***** ******* ****** **** *** ******** *. ******** *********** ********* *** ******** ** ** ******* ** ********** *. (**) ******** *********
******* ** *** ***** *** ****** ********* ***** ******** ***** ******* ********** **** ****** ** ****** ** ******* ******* (***) ** *** ***** ******* ********* ****** *** **** *****. *** **** ******, *** ***** ** ******** ** ** **********
*********** (**) ***** ** ******* **** ***** *** ** ********** *********** (**) ***** ** ******* *** ***** ****** *********** ********* *** ******** *****. ** ** *******, ** ********’* ****** ********* ***** ** *** ***** *** ***,*** *******
********** **** ***,*** ******* ********** ********* *****, ********* ********** ********* **** ****** ** **.**% ** ***** ******* ********* ****** *** **** ***** (***,*** ******* ** ***,***). *********, *** ***** ** ******** ** * ***** ** *****
******** **** **** *********** (**) ***** ** ******* *** ****** ********* ***** ** **** ** ** ********** *********** (**) ***** ** ******* **** ** *** *****, ****** *** ***** ********* ****** ********** ** *** ******* *** ***** ******. ** * ***** **
*************, ** ** ***** **** *** *********** ******** *** ********* ******* *** *** ********** ***** ** ******** **** **** *********** (**) *****. 

  

	6.	******** ************ **** *** ******* ******* (****) ** ********’* ******* ********* ******, *** ********’* *********** ********** ** ***’* ******* ********,
**** ** ******** *** ** *** *** ********** ********. *******, ****** ** ***** ******* ********** ** ***’* ******** ******** ****, ** ** *** ***** ** ** ********** ** ********* ****** **** ********* ******** ** **** ***** *** ***** ***’*
********** **** ******** *, *********** ********* *** ******** ** ** ******* ** ********** *. (**) ******** ********* *******, ******** ************ *** ****** **** ****** **** ******, ********** **** ** ******* ***** *****/***** ***** **********.
******** ***** *** ** ******* *** **** ***** ********** *** *** *** ********** ******* ***** *****/***** ***** **********. *******, *** ******** ** ********** *** ******* **********, *** ***** ******* *** **** ***** ********** *** ******* **** *****
**** **** ******** *** ***** ********** **** **** ******* ***** *****/***** ***** ********** *** **** “********” **** ***** ********** *** ******* **** ** ******** *** ******** ** *********** ** ******** *** ********* *** *******
**********. 

  

	7.	The parties acknowledge and agree that, as at the date of execution of this Amendment, they have initiated negotiations for the purpose of amending and restating the
Agreement (the “2008 Agreement”). The parties intend that the terms of the 2008 Agreement shall supersede and replace the terms of the Agreement. 

 IN WITNESS WHEREOF, the parties execute this Amendment on the date last signed below (“Effective Date”). 
  

									
	 COMCAST CABLE COMMUNICATIONS
 MANAGEMENT, LLC (“CUSTOMER”)
	 		 	CSG SYSTEMS, INC. (“CSG”)
					
	By:	 	/s/ Andrew J. Baer	 		 	By:	 	/s/ Peter E. Kalan
	Name:	 	Andrew J. Baer	 		 	Name:	 	Peter E. Kalan
	Title:	 	SVP & CIO	 		 	Title:	 	CEO
	Date:	 	May 22, 2008	 		 	Date:	 	May 29, 2008

  


					
		  	Page 3 of 3	  	4/28/08

 CONFIDENTIAL AND PROPRIETARY INFORMATION - FOR USE BY AUTHORIZED EMPLOYEES OF THE PARTIES HERETO
ONLY AND IS NOT FOR GENERAL DISTRIBUTION WITHIN OR OUTSIDE THEIR RESPECTIVE COMPANIES