0000912057-00-014188 10-K 4 19991231 20000329 TELETECH HOLDINGS INC 0001013880 7389 841291044 DE 1231 10-K 34 001-11919 581835 1700 LINCOLN STREET SUITE 1400 DENVER CO 80203 3038944000 1700 LINCOLN STREET SUITE 1400 DENVER CO 80203 10-K 1 000091205700014188-001-seq1-10-k.txt 10-K EX-21.1 2 000091205700014188-002-seq2-ex-21-1.txt EXHIBIT 21.1 EX-23.1 3 000091205700014188-003-seq3-ex-23-1.txt EXHIBIT 23.1 EX-27 4 000091205700014188-004-seq4-ex-27.txt EXHIBIT 27