<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC): LORI CSG LIMITED POA
<TEXT>
POWER OF ATTORNEY

               Know all by these presents that the undersigned hereby
constitutes and appoints each of Rasmani Bhattacharya, Andrea Matheny, Aisha
Qureshi, Aleksandra Barcikowski, Stephanie Osterman, and Angela Lantzy, signing
singly, as the undersigned's true and lawful attorney-in-fact to:

(1)         execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer and/or director of CSG Systems International, Inc. (the
"Company"), Forms 3, 4 and 5 (including amendments thereto) in accordance with
Section 16(a) of the Securities Exchange Act of 1934 and the rules and
regulations thereunder and a Form ID, Uniform Application for Access Codes to
File on Edgar Next;

(2)         do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and execute any
such Forms 3, 4 or 5 or Form ID and timely file such forms (including
amendments thereto) and application with the United States Securities and
Exchange Commission and any stock exchange or similar authority; and

(3)         take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve in
such attorney-in-fact's discretion.

               The undersigned hereby grants to each such attorney-in-fact full
power and authority  to do and perform any and every act and thing whatsoever
requisite, necessary or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

               The undersigned agrees that each such attorney-in-fact herein
may rely entirely on information furnished orally or in writing by the
undersigned to such attorney-in-fact. The undersigned also agrees to indemnify
and hold harmless the Company and each such attorney-in-fact against any
losses, claims, damages or liabilities (or actions in these respects) that
arise out of or are based upon any untrue statements or omission of necessary
facts in the information provided by the undersigned to such attorney-in fact
for purposes of executing, acknowledging, delivering or filing Forms 3, 4 or 5
(including amendments thereto) or Form ID and agrees to reimburse the Company
and such attorney-in-fact for any legal or other expenses reasonably incurred
in connection with investigating or defending against any such loss, claim,
damage, liability or action.

               This Power of Attorney supersedes any power of attorney
previously executed by the undersigned regarding the purposes outlined in the
first paragraph hereof ("Prior Powers of Attorney"), and the authority of the
attorneys-in-fact named in any Prior Powers of Attorney is hereby revoked.

               This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 3, 4 or 5 with
respect to the undersigned's holdings of and transactions in securities issued
by the Company, unless earlier (a) revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact or (b) superseded by a new
power of attorney regarding the purposes outlined in the first paragraph hereof
dated as of a later date.

               IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be effective as of 08/19/2025.

Name: Lori Szwanek
/s/ Lori Szwanek
</TEXT>
</DOCUMENT>
