GSM900 DTMF

Hello,

i have elecfreaks gsm shield http://www.elecfreaks.com/wiki/index.php?title=EFCom_GPRS/GSM_Shield and I use this library Google Code Archive - Long-term storage for Google Code Project Hosting. .

SendDTMF work fine, but DetDTMF haven't response.

Both functions are on the bottom this file Google Code Archive - Long-term storage for Google Code Project Hosting.

Other things work fine.

Thanks for your reply.