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Ctrip Technology
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
HomeTech
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.

FreeSWITCHOutbound CallingSIP
0 likes · 12 min read
Design and Evolution of a Smart Outbound Calling Platform Based on Freeswitch VoIP
Yang Money Pot Technology Team
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
Ctrip Technology
Ctrip Technology
Jan 25, 2018 · Operations

Software Session Border Controller (SBC): Overview, Application Scenarios, and Practical Implementation Experience

This article introduces Session Border Controllers (SBC), outlines three typical deployment scenarios, and shares detailed practical experiences—including architecture, implementation steps, and common pitfalls—of building software‑based SBC solutions such as VAG, VIG, and VTG for VoIP services.

FreeSWITCHNATOpenSIPS
0 likes · 11 min read
Software Session Border Controller (SBC): Overview, Application Scenarios, and Practical Implementation Experience