We Need To develop one Web base or desktop application with SIP or IAX protocol for phone number testing with Mailbox
2- register sip or iax account
3- dail number 1 by 1 from uploded list
4- When call answer send DTMF signal (* & *# ) if after seding this signal system get possitive reply from dailed number save that number and skip to other number
5- download list
11 los freelancers están ofertando un promedio de €318 para este trabajo.
Hello dear sir, i have a lot experience with asterisk PBX and i can make such application for testing numbers based on asterisk. Please contact me if you interested in. Thank you.