Santouliubi

What Santouliubi does

Santouliubi (三头六臂通信) is a privately held Chinese communications technology services provider founded in 2010 and headquartered in Fengtai, China. The company delivers an integrated telephony and outbound-sales stack to government, enterprise, and telecom-operator customers, built around four core product lines: an anti-blocking SIM card with carrier whitelist status, dynamic IP rotation, and AI-driven sensitive-word scanning; a phone management system with predictive/preview/auto/manual dialing modes, intelligent routing, and PC–mobile CRM synchronization; a Voice AI Robot combining speech recognition, synthesis, and NLP for automated conversation; and ancillary services including 400-number hosting, enterprise voice lines, enterprise SMS, dedicated internet lines, and office-communication bundles.

The technology layer combines proprietary anti-blocking mechanics (intelligent IP rotation every 10–20 calls, AI real-time sensitive-word interception, operator whitelist classification) with an in-house CRM platform and AI voice pipeline that automates screening, routing, and first-line servicing. The company claims exposure to over 100 million enterprise data clues spanning 10,000+ dimensions, deployed to support customer targeting and SOP-script logic. Disclosed operational scale includes 13,109+ cumulative served customers, 9,199+ active seats, 8,627+ positive user reviews, and 419 honors.

The commercial model is recurring, subscription-led B2B sales with three published tiers (139 yuan/1,200 min, 199 yuan/2,000 min, and 3000+ min customized) plus 68 yuan/seat/month platform access. Distribution runs through direct sales via a 7×24 service hotline (400-993-7993) and the official website (stlb.net.cn), supplemented by an industry-news content channel that doubles as top-of-funnel marketing. Disclosed capital events include a 2019 Series 2 round of approximately $14M led by Legend Capital. No subsequent funding, M&A, or leadership change is recorded in the available data.

Name

Santouliubi

Legal name

三头六臂通信

Website

https://stlb.net.cn

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Santouliubi (三头六臂通信) is a Chinese B2B communications technology services provider selling anti-blocking SIM cards, intelligent phone management systems, and Voice AI robots to government, enterprise, and telecom-operator clients via subscription-based calling packages and seat-based SaaS fees.

Ownership category

akta.pro rank

Product category

Enterprise Telecommunications Services

NAICS

Agents for Wireless Telecommunications Services (517122), Telephone Call Centers (56142)

SIC

Telephone Communications (No Radiotelephone) (4813), Telephone & Telegraph Apparatus (3661)

akta.pro primary industry

Contact Center (CCaaS) & Customer Engagement Voice (HDAIAHAF)

akta.pro secondary industries

Voice Assistants & Voice UI (VUI) (HDAAAFAD), VoIP Access & ITSP Services (HDAIAHAD), VoIP/ATA & Integrated Voice Gateways (CPE) (HDAFAIAJ)

Keywords

• Enterprise telecommunications services
• Voice AI automation
• Phone management systems
• Anti-blocking SIM solutions
• Outbound call center software

Headquarters

HQ city

Fengtai

HQ country

China

HQ region

Asia

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Technology or R&D

Revenue model

1. Anti-Blocking Phone Card Services: Provides anti-blocking phone cards with various calling packages (1200 min, 2000 min, or customized 3000+ min plans). Revenue generated through package sales with per-seat monthly fees (68 yuan/person/month) including intelligent management system access.
2. Phone Management System Services: Provides intelligent phone management systems with features including auto-dialing, voice AI, CRM integration, and data analytics. Revenue model includes subscription fees for system access and seat-based pricing.
3. Enterprise Telecommunications Services: Provides 400 phone numbers, enterprise phone voice lines, enterprise SMS, and office communications services. Revenue generated through service fees and usage charges.
4. Customized Enterprise Solutions: Offers customized calling packages for enterprises with larger call requirements, providing tailored pricing based on volume and specific needs.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Santouliubi (三头六臂通信) provides enterprise communications technology services in China, including Anti-blocking SIM cards with intelligent IP rotation, an intelligent Phone Management System with CRM integration, and a Voice AI Robot using speech recognition and NLP for automated customer interactions. The company also sells 400 telephone numbers, enterprise voice lines, enterprise SMS, and enterprise internet dedicated lines, targeting government agencies, enterprises, and telecom operators with end-to-end network construction, maintenance, and digital upgrade solutions.

Product overview

三头六臂通信 is a comprehensive communications technology service provider offering a full-cycle solution covering network construction, maintenance services, and digital transformation. The company's product portfolio centers on telecommunications services including Anti-blocking SIM Cards, Phone Management Systems, Voice AI Robots, 400 Telephone services, Enterprise Voice Lines, Enterprise SMS, and Enterprise Office Communication. These products work together to serve government agencies, enterprises, and telecom operators, providing end-to-end communication solutions from customer acquisition (via AI robots and anti-blocking cards) to call management (via phone management systems) to ongoing customer engagement (via SMS and voice lines).

Differentiator

Problem solved

Functional benefit

Products and services

• Anti-blocking SIM Card (防封手机卡) Specialized SIM card for high-frequency outbound sales calling, with intelligent IP rotation, operator whitelist mechanism, AI real-time scanning for sensitive words, and blacklist filtering for high-complaint-risk numbers; available in 1,200-minute, 2,000-minute, and customized 3,000+ minute packages for enterprise sales teams.
• Phone Management System (电话管理系统) Intelligent call center solution with predictive, preview, auto, and manual dialing modes; CRM integration with PC and mobile synchronization; call recording, real-time monitoring, intelligent routing, data statistics, and task scheduling; sold via 68 yuan/person/month seat subscription; designed to improve outbound efficiency 3-5x for enterprise sales teams.
• Voice AI Robot (语音AI机器人) AI-powered voice robot that uses speech recognition, synthesis, and natural language processing to understand customer voice input and automatically handle common questions and repetitive customer service tasks, reducing manual agent workload.
• 400 Telephone Service (400电话) Business telephone service providing dedicated 400 numbers for enterprise customer service hotlines, used to enhance corporate image and customer trust.
• Enterprise Telephone Voice Lines (企业电话语音线路) Professional voice line services providing reliable telecommunications infrastructure for enterprise call operations.
• Enterprise SMS (企业短信) Bulk SMS messaging service for enterprise marketing, notifications, and customer communication.
• Enterprise Office Communication (企业办公通信) Integrated office communication solutions combining voice, messaging, and data channels for enterprise internal and external communications.
• Enterprise Internet Dedicated Line (企业互联网专线) Dedicated internet connectivity service providing stable, high-speed network access for enterprise operations.

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature4 records

Partnerships

One partnership is on record.

• 运营商 (Telecommunications Operators)coreStrategic or Co-development Partner三头六臂通信 is positioned as a core partner service provider (核心合作服务商) with telecommunications operators, providing comprehensive communication technology services including network construction, maintenance, and digital transformation support.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• Twilio: Twilio provides programmable cloud communications APIs for voice, SMS, and customer engagement — adjacent to Santouliubi's enterprise voice lines, SMS, and call management business model, though serving developers and SaaS builders rather than direct enterprise sales teams.

Broad incumbents

• Genesys: Genesys is a global CCaaS incumbent offering cloud contact center, workforce engagement, and AI-driven customer journey orchestration. While not China-focused, it represents the global competitive benchmark for the category in which Santouliubi operates.
• Huawei Cloud Contact Center: Huawei Cloud provides enterprise cloud contact center solutions with speech recognition and AI capabilities, serving government, telecom operator, and large enterprise customers — overlapping with Santouliubi's enterprise and government-facing communications offerings.
• Avaya: Avaya is a long-established enterprise telephony and contact center incumbent. Its solutions overlap with Santouliubi's enterprise voice line and contact center offerings for large organizations, though Avaya focuses on on-premises and hybrid deployments versus Santouliubi's cloud positioning.
• Tencent Cloud Contact Center (腾讯云联络中心): Tencent Cloud offers CCaaS, intelligent IVR, and AI voicebot services to Chinese enterprises, especially those in WeChat-centric customer service flows. As a broad incumbent, it overlaps with Santouliubi's enterprise voice and AI calling capabilities across overlapping customer segments.
• Alibaba Cloud Contact Center (阿里云联络中心): Alibaba Cloud's CCaaS offering provides enterprise-grade cloud contact center, AI voicebot, and telephony APIs at hyperscaler scale. As a broad incumbent, it competes with Santouliubi for Chinese enterprise voice automation budgets with significantly greater R&D and brand resources.
• Zoom Contact Center: Zoom Contact Center extends Zoom's UCaaS base into CCaaS with cloud telephony, IVR, and AI voice features — comparable to Santouliubi's integrated voice + CRM + management positioning, though at a global rather than China-domestic scale.
• iFlytek (科大讯飞): iFlytek is China's leading speech recognition and NLP provider whose underlying voice AI capabilities power much of the country's voicebot ecosystem. Its enterprise voice AI products overlap with Santouliubi's Voice AI Robot functionality, and it sets the technology ceiling competitors must match.

Direct peers

• Udesk (沃丰科技): Udesk is a leading Chinese AI customer service and cloud contact center provider offering voice bots, intelligent routing, and CRM-integrated omnichannel solutions — directly comparable to Santouliubi's phone management system plus Voice AI Robot stack for outbound and inbound enterprise calling.
• Ronglian Qimo (容联七陌 / 7Moor): Ronglian Qimo provides cloud-based contact center, telemarketing outbound systems, and AI voice solutions for Chinese enterprises — overlapping directly with Santouliubi's outbound calling management, AI voice robot, and CRM-integrated dialer offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Santouliubi