FAQ for Dialogic DIVA Server BRI cards.

No echo-cancel with BRI v1 cards

The old v1 card of BRI has less memory on board, therefore the DSP features are split in different DSP firmware file. You need to decide which is appropriate for your purpose.

• dspdload.bin: (default) old fimrware protocol (V4)
• dspdvfax.bin: fax/unified messaging optimized, new protocol (V9) with more FAX / T.30 features and echo cancellor, but almost no modem.
• dspdvmdm.bin: modem optimized, new protocol (V9), no FAX, no echo cancellor, but modem including V.90 D.