We have USR Total Control MP/16 Managed modem pool (sku# 001268-0). According to the page 100-102 of manual from http://support.3com.com/docs/rapd/mp16vsnm.pdf this device can work with leased line only on speed 19200 (v.34 must be disabled). I guess this is a software problem since MP/16 non-managed (sku# 000939-0) had the same restriction 19200 with old sdl's, but can use V.34 and do 33600 on leased lines with new sdl's (and standart USR Courier also can use V.34 on leased lines since 1996). Maybe this can be solved by loading new SDL - our pool is very old (the answer on ATI7 command is below). It seems that sdl's for MP/16 non-managed cannot be used in this case. Does anybody have newer SDL's for MP/16 Managed ? ati7 Configuration Profile... Product type US/Canada Rackmount Options HST,V32bis,Terbo,V.FC,V34+ Fax Options Class 1/Class 2.0 Clock Freq 20.16Mhz Eprom 256k Ram 32k Supervisor date 03/13/96 DSP date 11/29/95 Supervisor rev 2.0.8 DSP rev 1.2.7 OK Thank you! Sergei Markelov technical director Moscow Center for Continuous Mathematical Education www.mccme.ru markelov@mccme.ru +7-095-2410500phone +7-095-2916501fax