4 ms·
The starting point is probably V.21 / Bell 103. Check out the datasheet for the AMI S3531 single-chip modem, it's got useful background and timing info.
by mng2 9y ago
The starting point is probably V.21 / Bell 103. Check out the datasheet for the AMI S3531 single-chip modem, it's got useful background and timing info.