The Dialogic Diva PRI/E1-30 ("Diva PRI/E1-30") is an exceptionally powerful, active server adapter, which comes as PCI and PCI express variants. Both variants provide identical digital and analog connectivity for up to 30 (31) channels via ISDN Primary Rate (PRI) or E1 Interface. Please note that T1 and J1 Interfaces are also supported. Both variants are full size form factors. Diva PRI/E1-30 has 31 on-board DSPs - dedicated to each channel - that support communications with digital devices, V.90 analog modems, fax machines and GSM-compatible mobile phones.