I want to use a rasberry as a sip intercom ,I want to dail the Pi and listen in via the mic and press *46# on my phone to triggger a output dtfm coding will be the way.
I am an IT professional with over 10 years VoIP experience. I believe that this is within my forte as a expert and I do hope I could get the chance to deliver this for you. I hope to hear from you soon.
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hi we already make this coding before but we will need to use external sound card usb for mic , because raspberry pi not have an analog input [login to view URL]