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Guest NCHne

Synway/CAHTA Devices

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Guest NCHne

Synway and NCH have been working together to try to develop better drivers for the US. Synway is currently working on a driver that should have no problems here in the United States. Until then, please make sure that your config file is set up with the following information.


United States of America

Busy tone - 600x120//600x133//600


0.5 on 0.5 off

Confirmation tone - 350+440 3x(0.1 on 0.1 off)

Dial tone - 600x120//600x133//600



Annex to ITU OB 781-E 27


Recall dial tone - 350+440 3x(0.1 on 0.1 off) + continuous

Intrusion tone - 600x120//600x133//600


0.5 on 0.5 off

Number unobtainable tone - 200//400 0.5 on 6.0 off

Permanent signal tone - 480//400//500 continuous

Record tone - 440 0.5 on 5.0 off

Ringing tone - 420x40//500x40//440+480 2.0 on 4.0 off

Re-order tone - 600x120//600x133//600


0.3 on 0.2 off

Warning tone - message (4) 1400 0.5 on

Call waiting tone - 440 2x(0.3 on 10.0 off)

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