User`s manual

Examples

at&fs38=0s109=0 This will disable ALL 56K connections

at&fs38=1s109=1s37=14 This will disable V.90 connections. The modem

will try to connect at K56flex rates with the V.34

upstream rate limited to 21.6K bps.

at&fs38=1s109=2 This will cause the modem to attempt a V.90 con-

nection only. If V.90 is not achieved, it will fall

back to V.34 rates.

at&fs38=10s109=2 This will cause the modem to attempt a V.90 con-

nection at 40K bps. It will fall back to slower

speeds if it cannot achieve or maintain this rate.

As a suggested “init string” in your communications program, use:

at&fw2s109=2s38=1s37=14

S38 = 19 52000 bits / s

S38 = 20 53333 bits / s

S109 K56flex and V.90 Selection (default 1)

Use this register to disable 56K connections or to choose between K56flex and

V.90 protocols. The default setting (S109=1) will attempt K56flex and then V.34

depending upon the central site modem being called and your phone line condi-

tions.

S109 = 0 Disable all 56K connections

S109 = 1 K56flex only, V.90 disabled (default)

S109 = 2 V.90 only. K56flex disabled