Bugger. Well you may have to do as you suggested and poll around each com port looking for an OK response to AT<cr> - as for busy then can't say I can think of any way OTTOMH. Possibly it may be simpler to make sure TAPI is there ? --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz
- [DUG]: Detecting Free Com ports Coulter, Jeremy
- Re: [DUG]: Detecting Free Com ports Paul Lowman
- RE: [DUG]: Detecting Free Com ports Coulter, Jeremy
- RE: [DUG]: Detecting Free Com ports Paul Lowman
- RE: [DUG]: Detecting Free Com ports Myles Penlington
- Re: [DUG]: FreeLibrary API Call Error Codes Greg Amer
- Re: [DUG]: FreeLibrary API Call Error Codes Kerry Sainsbury
- RE: [DUG]: Detecting Free Com ports Cooke, Andrew