1. Name and Address of Reporting Person
KALAN, PETER
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
(X) Officer (give title below) ( ) Other (specify below)
Chief Financial Officer
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 1600 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 $9.6875 01/28/2007 Common 8400 D
(Right to buy) Stock
Stock Options $14.8438 08/14/2007 Common 420 D
(Right to buy) Stock
Stock Options $14.8438 08/18/2007 Common 2080 D
(Right to buy) Stock
Stock Options $21.125 01/20/2008 Common 3200 D
(Right to buy) Stock
Stock Options $26.72 11/17/2008 Common 40000 D
(Right to buy) Stock
Stock Options $27.9375 10/10/2010 Common 10000 D
(Right to buy) Stock
Stock Options $34.43 12/14/2001 A 40000 12/14/2002 12/14/2011 Common 40000 $0.0000 40000 D
(Right to buy) Stock
Stock Options $38.44 01/07/2010 Common 15000 D
(Right to buy) Stock
Stock Options $47 01/17/2011 Common 30000 D
(Right to buy) Stock
Stock Options $47.5 08/25/2010 Common 10000 D
(Right to buy) Stock
Explanation of Responses:
This stock option is exercisable in 4 equal installments.
SIGNATURE OF REPORTING PERSON
/s/ PETER KALAN
DATE
02/01/2002