Canon MultiPASS C530, Service Manual

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MultiPASS C530/C560 Chapter 2: Technical Reference
NOTE
1. The V.34 protocol uses ECM. If the ECM SW in user data is set to OFF, the V.8
protocol is not executed. Therefore, the V.34 protocol is not used, and V.17 or a
lower protocol is selected.
2. If the transmission speed is set to 14400 bps or lower, the V.8 protocol is not
executed and V.17 or a lower protocol is selected.
3. After the V.21 protocol is selected first, it can be changed to V.8 or V.34. (See c-1) )
4. When the V.34 protocol begins, it falls back within the V.34 protocol, but it does not
fall back to the V.17 mode or lower.