Changes and enhancements in 5/15/95 Courier BETA firmware THIS IS BETA FIRMWARE. TECHNICAL SUPPORT WILL NOT ADDRESS ANY QUESTIONS OR CONCERNS REGARDING USE OF THIS ROM CODE. -------------------------------------------------------------- 1. Added V.34+ modulation. This is an extension of V.34 which adds signalling rates of 31200 BPS and 33600 BPS, and also provides improved performance at the standard V.34 speeds. Negotiation of this modulation is fully automatic and requires no configuration changes in modem setup. V.34+ may be disabled by setting bit 5 of S-register 56. The &N command has been extended to support the two new speeds, adding &N15 and &N16. New connect messages and result codes are: Verbal Numeric --------------------- ------- CONNECT 31200 151 CONNECT 31200/ARQ 152 CONNECT 31200/V34 153 CONNECT 31200/ARQ/V34 154 CONNECT 33600 155 CONNECT 33600/ARQ 156 CONNECT 33600/V34 157 CONNECT 33600/ARQ/V34 158 2. Improved V.FC line performance. 3. Improved V.34 compatability. 4. Improved V.32xxx retraining. 5. Improved FAX line performance. 6. Improved Call Selection (Adaptive Answer) operation. 7. Added the optional "Selective Reject" feature to LAPM operation. This feature enhances throughput by reducing the number of data blocks that are re-sent when an error (BLER) occurs. Selective Reject may be disabled by setting bit 6 of S-register 51. 8. Increased data block size in LAPM mode. The increased block size results in lower protocol overhead, and increased throughput. 9. The ATI6 diagnostic screen has an extended "Protocol" field which displays the actual block and window sizes, and indicates when Selective Reject has been negotiated. 10. ARQ LED operation has been modified so that the LED blinks whenever BLERS are encountered. Previous code only blinked the light when data was being re-transmitted due to BLERS at the remote side. Now that both conditions are being reported, you may notice an increase in the activity of that light. 11. MR LED operation has been modified so that the light extinguishes when either modem requests a retrain. Previous code only extinguished the light when the local modem made the request. 12. The &S5 option documented in the User's Guide and Quick Reference Card is now functional. 13. Dial Security with Autopass operation has been corrected. 14. Dial Security with Password Prompting has been corrected. 15. Minor cosmetic changes in diagnostics screens.