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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.

ASRFreeSWITCHLoad Balancing

0 likes · 27 min read

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

Architect's Guide

Mar 14, 2023 · Operations

Incident Handling and Fault Recovery Practices for Call Center Systems

This article outlines a call‑center outage scenario, explains how operators diagnose and resolve the issue, and presents a comprehensive set of fault‑handling methods, monitoring enhancements, and emergency‑plan recommendations aimed at faster recovery and eventual self‑healing of services.

Incident Managementcall centerfault recovery

0 likes · 12 min read

Incident Handling and Fault Recovery Practices for Call Center Systems

Architecture Digest

Feb 21, 2023 · Backend Development

Design and Architecture of a High‑Performance Customer Service System for Good Installment Business

The article presents a comprehensive technical design of a call‑center‑oriented customer service platform, covering business and technical architecture, a visual workflow engine, communication component decomposition, high‑availability strategies, and future plans for a unified telephony middle‑platform, aiming to improve first‑call resolution, system stability under traffic peaks, and overall user satisfaction.

High AvailabilityWorkflow Enginebackend architecture

0 likes · 15 min read

Design and Architecture of a High‑Performance Customer Service System for Good Installment Business

HomeTech

Sep 1, 2022 · Backend Development

Design and Evolution of a Smart Outbound Calling Platform Based on Freeswitch VoIP

This article explains how the smart outbound calling platform was conceived, compares VoIP platforms, introduces Freeswitch architecture and development modes, details SIP call flows and configuration, and describes the progressive evolution from a single‑instance deployment to a load‑balanced, hub‑and‑spoke architecture for high‑concurrency, multi‑tenant call‑center services.

FreeSWITCHLoad BalancingOutbound Calling

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Design and Evolution of a Smart Outbound Calling Platform Based on Freeswitch VoIP

Top Architect

Jun 11, 2022 · Operations

Comprehensive Fault Handling and Emergency Response Guide for Call Center Systems

This guide details a call‑center system fault scenario and provides a step‑by‑step approach for operations teams to identify symptoms, assess impact, implement rapid recovery actions, improve monitoring, and maintain an effective emergency response plan, ensuring faster resolution and long‑term fault self‑healing.

Incident Managementcall centeremergency plan

0 likes · 12 min read

Comprehensive Fault Handling and Emergency Response Guide for Call Center Systems

Architecture Digest

Jun 2, 2022 · Operations

Incident Handling and Fault Recovery Practices for Call Center Systems

The article outlines a comprehensive approach to diagnosing, responding to, and preventing call‑center system failures by describing typical fault scenarios, step‑by‑step recovery actions, monitoring enhancements, emergency plan components, and continuous improvement strategies for operations teams.

Incident Managementcall centeremergency procedures

0 likes · 13 min read

Efficient Ops

Jul 19, 2021 · Operations

Mastering Call Center Incident Management: Fast Fault Recovery and Proactive Monitoring

Learn practical strategies to accelerate call‑center fault recovery, from rapid root‑cause identification and emergency actions to enhanced monitoring, self‑healing goals, and comprehensive emergency plans that empower ops teams to resolve incidents efficiently and prevent future outages.

Incident Managementcall centeremergency plan

0 likes · 13 min read

Mastering Call Center Incident Management: Fast Fault Recovery and Proactive Monitoring

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.

CtripSIPpcall center

0 likes · 10 min read

Performance Testing of Ctrip Call Center Telephony System Using SIPp

58 Tech

Jul 31, 2020 · Artificial Intelligence

Intelligent Voice Quality Inspection System: Architecture, Core Technologies, and Business Cases

This article presents 58.com’s intelligent voice quality inspection system, detailing its overall architecture, speech separation, speaker role identification, NLP‑based tagging, model choices such as VGG, BERT, ALBERT and SPTM, and real‑world call‑center use cases that improve efficiency and reduce risk.

AINLPcall center

0 likes · 20 min read

Intelligent Voice Quality Inspection System: Architecture, Core Technologies, and Business Cases

Qunar Tech Salon

Dec 17, 2019 · Operations

Evolution of Call Center Technology: From Hotlines to Multimedia

This article traces the evolution of call center technology across four generations—from early hotlines using PSTN and PBX, through IVR and CTI innovations, to modern multimedia channels—highlighting key concepts, features, and their impact on operational efficiency and customer service.

CTIIVRTelecommunications

0 likes · 10 min read

Evolution of Call Center Technology: From Hotlines to Multimedia

Ctrip Technology

Dec 19, 2018 · Cloud Computing

Design and Architecture of Ctrip's Cloud Customer Service Platform

This article presents the design principles, core and logical architectures, AI integration, and platform capabilities of Ctrip's cloud-based customer service system, highlighting its multi‑channel, multi‑region, multi‑business, multilingual support, containerized microservices, and intelligent routing features.

AIMicroservicesarchitecture

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Design and Architecture of Ctrip's Cloud Customer Service Platform

Ctrip Technology

Sep 4, 2018 · Artificial Intelligence

Call Center Volume Forecasting and Staffing Optimization at Ctrip: From Data Cleaning to V2.0 Predictive System

This article describes Ctrip's call‑center staffing challenge, detailing data cleaning, trend analysis, feature engineering, the initial ARIMAX‑Fourier model (V1.0), its limitations, and the improved V2.0 solution that combines TBATS, ARIMA residuals and XGBoost, achieving up to 89.5% prediction accuracy.

Feature EngineeringXGBoostcall center

0 likes · 9 min read

Call Center Volume Forecasting and Staffing Optimization at Ctrip: From Data Cleaning to V2.0 Predictive System

Ctrip Technology

Dec 27, 2017 · Artificial Intelligence

Intelligent Outbound Call Automation for Hotel Order Confirmation at Ctrip

This article describes how Ctrip’s data science team applied machine learning models to predict response times and outbound call effectiveness, transforming the hotel order confirmation process into an intelligent, automated workflow that reduces unnecessary calls, improves resource allocation, and boosts overall call‑center efficiency.

AICtripautomation

0 likes · 9 min read

Intelligent Outbound Call Automation for Hotel Order Confirmation at Ctrip

Ctrip Technology

Nov 16, 2017 · Operations

Horus Call Center Monitoring System: Architecture, Features, and Automated Alert Solutions

The Horus system is a comprehensive call‑center monitoring platform that automates data collection, fault detection, alert generation, and escalation through statistical analysis, feature extraction, and integration with voice‑bot testing to improve operational efficiency and reduce false alarms.

Big Dataalertingautomation

0 likes · 10 min read

Horus Call Center Monitoring System: Architecture, Features, and Automated Alert Solutions

Ctrip Technology

Jun 29, 2017 · Backend Development

Ctrip IM+ Customer Service System: Architecture, Challenges, and Solutions

The article describes how Ctrip’s IM+ platform integrates voice calls and instant messaging into a unified, multi‑channel customer service solution, detailing its background, current limitations, hybrid architecture, distributed intelligent routing, rule‑engine based allocation, and unified session management to improve efficiency and user experience.

Hybrid Architecturecall centercustomer service

0 likes · 9 min read

Ctrip IM+ Customer Service System: Architecture, Challenges, and Solutions

Ctrip Technology

Dec 9, 2016 · Operations

Design and Implementation of Ctrip Call Center's Active‑Active Architecture and Unified Login

The article details Ctrip's call‑center architecture evolution, describing the multi‑layer active‑active design, public access, application and client layers, unified login mechanisms, operational challenges, disaster‑recovery drills, and future plans for software‑only and mobile agents, illustrating practical SRE principles in a large‑scale telephony system.

High AvailabilityIP phoneSRE

0 likes · 22 min read

Design and Implementation of Ctrip Call Center's Active‑Active Architecture and Unified Login

Efficient Ops

Dec 4, 2016 · Operations

How Ctrip Built a Seamless Multi‑Region Dual‑Active Call Center

This article details Ctrip's evolution from a single‑site call‑center to a fully dual‑active, multi‑region architecture, covering the overall system design, public network, application, and client layers, unified login mechanisms, heartbeat monitoring, and future software‑only and mobile‑first directions.

High AvailabilitySREcall center

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How Ctrip Built a Seamless Multi‑Region Dual‑Active Call Center

Qunar Tech Salon

Nov 18, 2016 · Operations

Design and Implementation of Ctrip's Predictive Outbound Call Platform

This article describes Ctrip's large‑scale predictive outbound call platform, covering its underlying algorithms, SoftPBX integration, system architecture, concurrency enhancements, deployment experience, and measurable improvements in call success rates and agent efficiency.

call centeroperationsoutbound algorithm

0 likes · 8 min read

Design and Implementation of Ctrip's Predictive Outbound Call Platform

Ctrip Technology

Jun 16, 2016 · Operations

Technical Overview of Multi‑Site Active‑Active Call Center Architecture and Implementation

The article explains how modern call centers evolve to multi‑site active‑active deployments, detailing the network design, disaster‑recovery mechanisms, login and monitoring logic, key features supporting automatic failover for thousands of agents, and future expansion possibilities.

High Availabilityactive-activecall center

0 likes · 6 min read

Technical Overview of Multi‑Site Active‑Active Call Center Architecture and Implementation

Architecture Digest

Jun 15, 2016 · Operations

Design and Implementation of Multi‑Site Active‑Active Disaster Recovery for Call Centers

The article describes how a large‑scale call center evolves to a multi‑site architecture and implements system‑level active‑active disaster recovery using Ctrip's contact‑center and unified login platforms, detailing the login flow, fault‑detection logic, key features, and future extensions.

High Availabilityactive-activecall center

0 likes · 6 min read

Design and Implementation of Multi‑Site Active‑Active Disaster Recovery for Call Centers