1. Name and Address of Reporting Person
WIESE, RANDY
7887 E. Belleview Avenue
Suite 1000
Englewood, CO 80111
USA
2. Issuer Name and Ticker or Trading Symbol
CSG Systems International, Inc. (CSGS)
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Year
2001
5. If Amendment, Date of Original (Month/Day/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
( ) Director ( ) 10% Owner
( ) Officer (give title below) (X) Other (specify below)
Vice President
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
TABLE I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
+---------------------------------+----------+-------------+-----------------------------+----------------+-----------+------------+
|1. Title of Security |2. Trans- |3. Trans- |4. Securities Acquired (A) |5. Amount of |6. Owner- |7. Nature |
| | action | action | or Disposed of (D) | Securities | ship | of In- |
| | Date | Code | | Beneficially | Form: | direct |
| | | | | Owned at | Direct | Bene- |
| | (Month/ | | | End of | (D) or | ficial |
| | Day/ | +-----------+------+----------+ Year | Indirect| Owner- |
| | Year) | |Amount |A/D |Price | | (I) | ship |
+---------------------------------+----------+-------------+-----------+------+----------+----------------+-----------+------------+
Common Stock 0 D
TABLE II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
+-------------+--------+----------+---------+-----------+---------------------+----------------+----------+--------+-------+-------+
|1. |2. |3. |4. |5. |6. |7. |8. |9. |10. |11. |
| | | | | | | | |Number |Owner- | |
| | | | | | | | |of |ship | |
| | | | | | | | |Deriv- |Form of| |
| | | | | | |Title and Amount| |ative |Deriv- | |
| | | | | | |of Underlying | |Secur- |ative |Nature |
| |Conver- | | |Number of | |Securities | |ities |Secur- |of |
| |sion or | | |Derivative |Date Exercisable +-------+--------+ |Benefi- |ity: |In- |
| |Exercise| | |Securities |and Expiration Date | |Amount | |cially |Direct |direct |
| |Price of|Transac- |Transac- |Acquired(A)|(Month/Day/Year) | |or | |Owned |(D) or |Bene- |
|Title of |Deriv- |tion Date |tion Code|Disposed(D)+----------+----------+ |Number |Price of |at End |In- |ficial |
|Derivative |ative |(Month/ | +-----+-----+Date Exer-|Expira- | |of |Derivative|of |direct |Owner- |
|Security |Security|Day/Year) | |(A) |(D) |cisable |tion Date |Title |Shares |Security |Year |(I) |ship |
+-------------+--------+----------+---------+-----+-----+----------+----------+-------+--------+----------+--------+-------+-------+
Stock Options $14.875 06/06/2006 Common 3000 D
(Right to buy) Stock
Stock Options $21.125 01/20/2008 Common 2500 D
(Right to buy) Stock
Stock Options $26.7188 11/17/2008 Common 15000 D
(Right to buy) Stock
Stock Options $34.43 12/14/2001 A 7500 12/14/2002 12/14/2011 Common 7500 $0.0000 7500 D
(Right to buy) Stock
Stock Options $38.4375 01/07/2010 Common 3750 D
(Right to buy) Stock
Stock Options $47 01/17/2011 Common 9500 D
(Right to buy) Stock
Explanation of Responses:
This stock option is exercisable in 4 equal installments.
SIGNATURE OF REPORTING PERSON
/s/ RANDY WIESE
DATE
02/01/2002