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Ctrip Technology

Dec 21, 2023 · Backend Development

Load Balancing ASR Services in Ctrip Call Center: Architecture and Implementation with FreeSWITCH and OpenSIPS

This article details the design, evolution, and best‑practice implementation of load‑balancing for ASR (speech‑recognition) services in Ctrip's massive call‑center, covering component architecture, MRCP integration, challenges with traditional balancers, and two practical solutions using FreeSWITCH distributor and OpenSIPS.

ASRFreeSWITCHMRCP

0 likes · 27 min read

Load Balancing ASR Services in Ctrip Call Center: Architecture and Implementation with FreeSWITCH and OpenSIPS

Yang Money Pot Technology Team

Sep 13, 2021 · Backend Development

Evolution of Voice Communication and the Design of the YTalk Call Platform Based on FreeSWITCH

This article traces the historical development from early wired telephones to modern mobile and internet voice services, then details the architecture, features, SIP protocol handling, and Java‑FreeSWITCH integration of the YTalk call platform used for outbound and inbound communications.

Call PlatformFreeSWITCHSIP

0 likes · 23 min read

Evolution of Voice Communication and the Design of the YTalk Call Platform Based on FreeSWITCH

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

0 likes · 8 min read

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

Ctrip Technology

Aug 6, 2020 · Operations

Performance Testing of Ctrip Call Center Telephony System Using SIPp

This article describes how Ctrip’s senior test engineer designed and executed SIP‑based load‑testing scenarios with SIPp to evaluate the call‑center system’s capacity, concurrency limits, IVR/PBX overflow handling, and geographic routing accuracy during peak travel periods.

CtripPerformance TestingSIPp

0 likes · 10 min read

Performance Testing of Ctrip Call Center Telephony System Using SIPp

58 Tech

Nov 18, 2019 · Artificial Intelligence

Comprehensive Solution for Human‑Machine Voice Dialogue Robot at 58.com

This article presents a complete solution for 58.com’s human‑machine voice dialogue robot, detailing its background, overall architecture, intelligent outbound process, core functions such as call service, anti‑spam, status recognition, multi‑turn dialogue management, intent classification, slot extraction, whole‑round intent detection, and various practical application scenarios.

AIDialogue ManagementIntent classification

0 likes · 13 min read

Comprehensive Solution for Human‑Machine Voice Dialogue Robot at 58.com

DataFunTalk

Nov 18, 2019 · Artificial Intelligence

Complete Solution of 58.com Human-Machine Voice Dialogue Robot: Architecture, Core Modules, and Application Scenarios

This article presents the end‑to‑end solution of 58.com’s voice dialogue robot, detailing its overall architecture, intelligent outbound process, core functions such as call dialing, status recognition, dialogue management, intent detection, and showcasing multiple real‑world application scenarios that improve sales, operations, and customer service efficiency.

AIDialogue ManagementSpeech Recognition

0 likes · 12 min read

Complete Solution of 58.com Human-Machine Voice Dialogue Robot: Architecture, Core Modules, and Application Scenarios

58 Tech

May 28, 2019 · Artificial Intelligence

Architecture and Design of an AI‑Powered Voice Robot System

The article describes the design and implementation of a voice robot platform, covering its background, layered architecture, dialogue flow, intent recognition techniques, micro‑service backend, and future improvements, highlighting how AI models and telephony integration enable automated multi‑turn voice interactions for sales and service scenarios.

MicroservicesSpeech AIVoice Bot

0 likes · 11 min read

Architecture and Design of an AI‑Powered Voice Robot System

58 Tech

May 28, 2019 · Artificial Intelligence

Implementation of Voice Call Functionality in an Intelligent Voice Robot

This article details the architecture and implementation of the voice call module of an intelligent voice robot, covering SIP signaling establishment, RTP session handling, audio encoding/decoding, sampling, and packetization to enable automated outbound calls and multi‑round voice interactions.

AISIPVoice Bot

0 likes · 9 min read

Implementation of Voice Call Functionality in an Intelligent Voice Robot