X0201 4 2004-03-22 1 0001167140 CORTELCO SYSTEMS PUERTO RICO INC CPROF.OB 0001071431 CHINAVEST PARTNERS IV C/O PRENTICE HALL CORPORATION SYSTEM 32 LOOKERMAN SQ., SUITE L-100 DOVER, DE X1 19901 0 0 0 1 Control Person of 10% owner Common Stock 2004-03-22 2004-03-22 4 S 0 178847 0.20 D 0 I Control Person (General Partner) of 10% Owner This Form is filed by ChinaVest Partners IV (CVP). CVP is the general partner of ChinaVest IV, L.P. (CV4) the legal owner of 153,808 shares of Common Stock of the Issuer (12.8%). CV4 is one of 3 affiliated venture Funds that invest and divest side-by-side in all investments. CVP is also the general partner of one such other fund, ChinaVest IV-A, L.P. (CV4A). An affiliate of CVP is the general partner of the third affiliated Fund, ChinaVest IV-B, L.P. (CV4B). CVP is filing this report by reason of its power to vote and dispose of the shares owned by CV4 (153,808 shares or 12.8% of the Issuer?s Common Stock). CV4A (17,706 shares or 1.47%) and CV4B (7,333 shares or 0.60%). Because CVP is the general partner of each of CV4 and CV4A, because the 3 ChinaVest Funds invest and divest side-by-side, and because an affiliate of CVP is the general partner of CV4B, L.P., the shares of the Issuer legally owned by CV4A and CV4B are reported in this Form as being sold CVP. Edward B. Collins, General Partner 2004-03-22