are you sure about ATD03518726535\n?
can you try if ( dio_write($handle, 'AT') )?
- [PHP] problem with sending AT command in php a dehqan
- Re: [PHP] problem with sending AT command in php Negin Nickparsa
- Re: [PHP] problem with sending AT command in php a dehqan
- Re: [PHP] problem with sending AT command in... Richard Quadling
- Re: [PHP] problem with sending AT comman... a dehqan
- Re: [PHP] problem with sending AT c... Richard Quadling
- Re: [PHP] problem with sending ... Mike Mackintosh
- Re: [PHP] problem with send... Richard Quadling
- Re: [PHP] problem with send... a dehqan
