There is currently no support for either TCS-BIN or SCO links in Apple's Bluetooth stack at the moment. SCO is the isochronous link which is used to support headset audio over Bluetooth. This would be quite difficult for you to add to the stack, since the underlying plumbing does not exist at this time. The other portion of telephony is TCS-BIN. There is no stack support for this protocol per-se. However, TCS-BIN uses an L2CAP channel for it's data side. There are L2CAP APIs so you could add support for the data side of TCS-BIN. In a quick look at the spec, it appears that TCS-BIN also requires the audio link to come from the same device, or at least it implies it. You may have luck using just the data link, or you may find that phones expect there to be a corresponding audio link to go with the data link - I am not sure on this one. -larson On Tuesday, April 22, 2003, at 05:51 PM, Michael A. Crawford wrote: Is Telephony Control Protocol supported in Apple's Bluetooth implementation? Any pointers on how to access it from Cocoa or C++? I have an Ericsson T68 that I'd like to integrate with my Powerbook. _______________________________________________ bluetooth-dev mailing list | bluetooth-dev@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.