S38 |
| 56K Dial Line Rate (default 1) |
S38 | = 0 | Disable all 56K connections |
S38 | = 1 | autorate - maximum achievable connection (default) |
S38 = 2 | 29333 bits / s | |
S38 = 3 | 30666 bits / s | |
S38 = 4 | 32000 bits / s | |
S38 = 5 | 33333 bits / s | |
S38 = 6 | 34666 bits / s | |
S38 = 7 | 36000 bits / s | |
S38 = 8 | 37333 bits / s | |
S38 = 9 | 38666 bits / s | |
S38 | = 10 | 40000 bits / s |
S38 | = 12 | 42666 bits / s |
S38 | = 13 | 44000 bits / s |
S38 | = 14 | 45333 bits / s |
S38 | = 15 | 46666 bits / s |
S38 | = 16 | 48000 bits / s |
S38 | = 17 | 49333 bits / s |
S38 | = 18 | 50666 bits / s |
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 depend- ing upon the central site modem being called and your phone line conditions.
S109 = 0 | Disable all 56K connections |
S109 = 1 | K56flex only, V.90 disabled (default) |
S109 = 2 | V.90 only. K56flex disabled |
Examples
at&fs38=0s109=0This 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 up- stream rate limited to 21.6K bps.
at&fs38=1s109=2This will cause the modem to attempt a V.90 connection 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
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