Prowid course material: https://kurslar.prowid.com/en/index.php?id=lesson&m=3615
Voice over IP: Codecs, RTP, DTMF and Quality · Problems and solutions
Case study: duplicate DTMF digits in IVR — simultaneous in-band and RFC 4733 transmission
🔒 This is the beginning of the lesson. The full lesson is available with a subscription.
