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DTMF

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58 Tech

Dec 28, 2020 · Backend Development

Implementation of SIP‑Based DTMF Signal Capture for Intelligent Voice Robots

This article explains how an intelligent voice robot leverages TTS and SIP to convert server alerts into spoken notifications, detailing the end‑to‑end workflow, DTMF transmission methods, SIP detection techniques, SDP media negotiation, and RTP‑based DTMF parsing to enable reliable key‑press handling.

DTMFRTPSIP

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Implementation of SIP‑Based DTMF Signal Capture for Intelligent Voice Robots

58 Tech

Nov 30, 2018 · Fundamentals

Design and Implementation of WRTC Real‑Time Audio/Video and IP‑Telephony Solution

This article describes the background, architecture, signaling flow, client and server components, and code details of TEG's WRTC solution for real‑time audio/video calls and IP‑telephony, including WebRTC fundamentals, SIP integration, and DTMF support.

Audio-VideoDTMFIP Telephony

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Design and Implementation of WRTC Real‑Time Audio/Video and IP‑Telephony Solution