SIP中繼服務市場 - 全球產業規模、佔有率、趨勢、機會及預測（按組織規模、最終用戶、地區和競爭格局分類，2021-2031年）

全球 SIP 中繼服務市場預計將從 2025 年的 142.7 億美元成長到 2031 年的 282.3 億美元，複合年成長率為 12.04%。

本質上，對話啟動協定(SIP) 中繼是一種通訊服務，它將公司內部的專用專用交換機(PBX) 透過網際網路連接到公共交換電話網路 (PSTN)，從而有效地取代了傳統的固定電話線路。市場成長的主要驅動力是硬體維護成本的顯著降低、通道容量的按需擴充性以及全球淘汰老舊模擬基礎設施的需求。這種結構性變化在舊有系統的快速衰退中顯而易見。例如，英國通訊管理局 (Ofcom) 發布的 2024 年報告預測，隨著企業加速向數位語音解決方案轉型，傳統語音連線將僅佔所有固定電話連線的 27%，低於前一年的 41%。

然而，市場擴張面臨一個重大障礙：它依賴穩定、高速的網路連線。由於SIP中繼透過IP網路傳輸語音數據，基礎設施不穩定的地區的組織經常會遇到服務品質問題，例如延遲和丟包。這些技術難題會影響通訊清晰度，並阻礙SIP解決方案在可靠性至關重要的關鍵任務環境中的應用。

市場促進因素

全球從傳統公共交換電話網路 (PSTN) 和綜合業務數位網路 (ISDN) 系統向 IP 為基礎的網路過渡，是推動 SIP 中繼服務普及的根本動力。隨著通訊業者和監管機構逐步淘汰過時的銅纜基礎設施，企業被迫轉向數位語音解決方案以維持服務連續性。愛爾蘭通訊監管機構 (ComReg) 的數據也印證了這項根本轉變。根據該機構發布的《2024 年第一季關鍵數據報告》，預計 2024 年第一季愛爾蘭的固定語音流量將年減 25%，這反映出傳統電話系統的快速淘汰。因此，這種強制性過渡催生了對 SIP 中繼的迫切需求，SIP 中繼是現代基於 IP 的專用交換機(PBX) 系統必不可少的連接層。

同時，基於雲端的整合通訊(UC) 服務的快速普及正在改變市場消費模式，將語音服務從本地硬體轉移到靈活的雲端平台。主要的 UCaaS 供應商現在直接整合公共交換電話網路 (PSTN) 連接，使得強大的 SIP 中繼基礎設施成為支援大量並發呼叫的關鍵。例如，微軟在 2024 年 4 月發布的 2024 會計年度第三季財報電話會議上報告稱，Teams Phone 的 PSTN 用戶數量年增 30%，達到 2,000 萬。雲端採用率的激增為 SIP 供應商創造了巨大的商機。 Gamma Communications PLC 在 2024 年 3 月發布的 2023 會計年度年度報告和帳目中報告稱，其收入成長 8%，達到 5.217 億英鎊，這主要得益於其企業雲語音業務的成長。

市場挑戰

對穩定高速網路連線的依賴是全球SIP中繼服務市場擴張的主要障礙。與傳統電話系統不同，SIP中繼將語音訊號封裝在數位資料包中，並透過IP網路傳輸，這使得該服務本身極易受到頻寬波動的影響。在數位基礎設施低度開發的地區，企業經常面臨嚴重的服務品質問題，例如高延遲、抖動和封包遺失。這些技術缺陷會降低通話清晰度和可靠性，迫使企業寧願維護昂貴的傳統類比系統，也不願冒險使用不穩定的IP連線進行業務通訊。

對強大網路架構的依賴限制了潛在市場的規模，尤其是在數位落差顯著的開發中國家。在底層傳輸層缺失或不可靠的地區，服務供應商無法有效部署SIP解決方案。根據電訊（ITU）預測，到2024年，全球約有26億人（佔全球人口的32%）將無法連接網路。這種嚴重的網路連線不足凸顯了阻礙SIP服務普及的實體限制，也有效地限制了市場充分發揮其全球潛力。

市場趨勢

自帶業者 (BYOC) 模式的日益普及正在從根本上改變籌資策略，因為企業正逐步將電話服務與整合通訊即服務 (UCaaS) 平台解耦。這種方法允許企業選擇獨立的 SIP 中繼供應商，同時保留其首選的協作介面，從而更好地控制呼叫路由、合規性和全球覆蓋範圍。營運商層級的解耦使企業能夠協商更優惠的價格、確保冗餘，並避免捆綁營運商套餐帶來的供應商鎖定。這種解耦基礎設施的商業性發展勢頭十分強勁：Bandwidth Inc. 在 2024 年 8 月發布的“2024 會計年度第二季度”財報中公佈，其總收入達 1.74 億美元，這主要得益於企業雲通訊和直接運營商整合方面的需求。

同時，部署人工智慧驅動的自動化詐欺偵測系統來保護SIP架構免受國際收入分成詐騙（IRSF）和王吉里攻擊等高階威脅，正成為日益重要的技術挑戰。由於傳統的靜態規則集已無法抵禦動態攻擊，營運商正在整合機器學習演算法，以驅動即時流量分析，從而在造成經濟損失之前檢測並阻止異常情況。惡意流量的快速成長進一步凸顯了此類高階防禦機制的必要性。根據Hiya於2024年4月發布的《2024年通話狀況報告》，2023年處理的所有未知呼叫中，有28%將被判定為詐騙或垃圾電話，這凸顯了一個嚴重的安全風險，而人工智慧增強型SIP解決方案亟需緩解這一風險。

目錄

第1章概述

第2章調查方法

第3章執行摘要

第4章：客戶評價

第5章 全球SIP中繼服務市場展望

• 市場規模及預測
  • 按金額
• 市佔率及預測
  • 依組織規模（中小企業、中型企業、大型企業）
  • 按最終用戶分類（銀行、金融服務和保險 (BFSI)、教育、零售、醫療保健、運輸和物流、旅遊和酒店、製造業、其他）
  • 按地區
  • 按公司（2025 年）
• 市場地圖

第6章：北美SIP中繼服務市場展望

• 市場規模及預測
• 市佔率及預測
• 北美洲：國家分析
  • 美國
  • 加拿大
  • 墨西哥

第7章：歐洲SIP中繼服務市場展望

• 市場規模及預測
• 市佔率及預測
• 歐洲：國家分析
  • 德國
  • 法國
  • 英國
  • 義大利
  • 西班牙

第8章：亞太地區SIP中繼服務市場展望

• 市場規模及預測
• 市佔率及預測
• 亞太地區：國家分析
  • 中國
  • 印度
  • 日本
  • 韓國
  • 澳洲

9. 中東和非洲SIP中繼服務市場展望

• 市場規模及預測
• 市佔率及預測
• 中東和非洲：國家分析
  • 沙烏地阿拉伯
  • 阿拉伯聯合大公國
  • 南非

第10章：南美SIP中繼服務市場展望

• 市場規模及預測
• 市佔率及預測
• 南美洲：國家分析
  • 巴西
  • 哥倫比亞
  • 阿根廷

第11章 市場動態

• 促進要素
• 任務

第12章 市場趨勢與發展

• 併購
• 產品發布
• 最新進展

第13章：全球SIP中繼服務市場：SWOT分析

第14章：波特五力分析

• 產業競爭
• 新進入者的可能性
• 供應商電力
• 顧客權力
• 替代品的威脅

第15章 競爭格局

• AT&T, Inc.
• 8&8, Inc.
• Bandwidth Inc.
• BT Group Plc
• Lumen Technologies
• GTT Communications
• Verizon Communications Inc.
• Colt Technology Services Group Limited
• Deutsche Telekom AG
• Gamma Communications Plc

第16章 策略建議

第17章：關於研究公司及免責聲明

The Global SIP Trunking Services Market is projected to expand from USD 14.27 Billion in 2025 to USD 28.23 Billion by 2031, registering a compound annual growth rate of 12.04%. Essentially, Session Initiation Protocol (SIP) trunking is a communication service that links a company's on-premise private branch exchange (PBX) to the public switched telephone network (PSTN) via the internet, effectively replacing traditional fixed telephone lines. The market's growth is primarily driven by the substantial cost savings realized through the elimination of hardware maintenance, the ability to scale channel capacity on demand, and the global necessity to migrate from outdated analog infrastructure. This structural shift is highlighted by the rapid decline of legacy systems; for example, Ofcom reported in 2024 that legacy voice connections dropped to just 27% of all landline connections, down from 41% the previous year, as enterprises accelerate their transition to digital voice solutions.

However, market expansion faces a significant obstacle regarding the reliance on consistent, high-speed internet connectivity. Since SIP trunking transmits voice data over IP networks, organizations located in regions with unstable infrastructure frequently encounter quality of service issues, such as latency and packet loss. These technical difficulties can compromise communication clarity and discourage the adoption of SIP solutions in environments where mission-critical reliability is essential.

Market Driver

The worldwide transition from legacy PSTN and ISDN systems to IP-based networks serves as the fundamental catalyst for the adoption of SIP trunking services. As telecommunications operators and regulatory bodies decommission obsolete copper infrastructure, enterprises are forced to migrate to digital voice solutions to maintain service continuity. This structural displacement is evident in data from the Commission for Communications Regulation (ComReg), which noted in its 'Quarterly Key Data Report Q1 2024' that fixed voice traffic in Ireland fell by 25% in the first quarter of 2024 compared to the same period in 2023, reflecting the rapid obsolescence of traditional telephony. Consequently, this mandatory migration creates an urgent, non-negotiable demand for SIP trunks as the essential connectivity layer for modern IP-based Private Branch Exchange (PBX) systems.

Simultaneously, the swift proliferation of cloud-based Unified Communications (UC) services is transforming market consumption patterns, moving voice services from on-premise hardware to flexible cloud platforms. Major UCaaS providers are now integrating public switched telephone network (PSTN) connectivity directly, necessitating robust SIP trunking backbones to handle high volumes of concurrent calls. For instance, Microsoft reported in its 'Fiscal Year 2024 Third Quarter Earnings Conference Call' in April 2024 that Teams Phone PSTN users reached 20 million, a 30% increase year-over-year. This surge in cloud adoption generates significant commercial opportunities for SIP providers; Gamma Communications PLC, in its 'Annual Report and Accounts 2023' released in March 2024, reported an 8% revenue increase to £521.7 million, driven largely by growth in their business and enterprise cloud voice segments.

Market Challenge

The dependency on consistent, high-speed internet connectivity presents a formidable barrier to the expansion of the Global SIP Trunking Services Market. Unlike traditional telephony, SIP trunking encapsulates voice signals into digital packets for transmission over IP networks, making the service inherently vulnerable to bandwidth fluctuations. In regions with underdeveloped digital infrastructure, organizations frequently encounter significant quality of service issues, including high latency, jitter, and packet loss. These technical deficiencies degrade call clarity and reliability, compelling enterprises to retain expensive legacy analog systems rather than risking their operational communications on unstable IP connections.

This reliance on robust network architecture restricts the addressable market size, particularly in developing economies where the digital divide remains pronounced. Service providers cannot effectively deploy SIP solutions in areas where the fundamental transport layer is absent or unreliable. According to the International Telecommunication Union, approximately 2.6 billion people remained offline worldwide in 2024, accounting for 32 percent of the global population. This substantial lack of connectivity underscores the physical limitations hindering the universal adoption of SIP services, effectively preventing the market from reaching its full global potential.

Market Trends

The increasing popularity of Bring Your Own Carrier (BYOC) models is fundamentally altering procurement strategies as enterprises progressively unbundle telephony services from Unified Communications as a Service (UCaaS) platforms. This approach allows organizations to select independent SIP trunking providers while maintaining their preferred collaboration interfaces, granting them greater control over call routing, regulatory compliance, and global coverage. By decoupling the carrier layer, businesses can negotiate superior rates and ensure redundancy, avoiding the vendor lock-in associated with bundled carrier plans. The commercial momentum of this unbundled infrastructure is evident; Bandwidth Inc. reported total revenue of $174 million in its 'Second Quarter 2024 Financial Results' in August 2024, a figure driven significantly by the demand for enterprise-grade cloud communications and direct carrier integration.

At the same time, the deployment of AI-driven automated fraud detection systems has become a critical technological imperative to secure SIP architecture against sophisticated threats like International Revenue Share Fraud (IRSF) and Wangiri attacks. Traditional static rule sets are no longer sufficient to stop dynamic attack vectors, prompting providers to integrate machine learning algorithms that analyze traffic patterns in real-time to block anomalies before financial damage occurs. The necessity for these advanced defensive mechanisms is underscored by the escalating volume of malicious traffic; Hiya's '2024 State of the Call Report' from April 2024 noted that 28% of all unknown calls processed in 2023 were identified as fraud or spam, highlighting the severe security risks that AI-enhanced SIP solutions must now mitigate.

Key Market Players

• AT&T, Inc.
• 8&8, Inc.
• Bandwidth Inc.
• BT Group Plc
• Lumen Technologies
• GTT Communications
• Verizon Communications Inc.
• Colt Technology Services Group Limited
• Deutsche Telekom AG
• Gamma Communications Plc

Report Scope

In this report, the Global SIP Trunking Services Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

SIP Trunking Services Market, By Organization Size

• Small Businesses
• Mid-Sized Businesses
• Large Enterprises

SIP Trunking Services Market, By End-User

• Banking, Financial, Services, Insurance (BFSI)
• Education
• Retail
• Healthcare
• Transportation & Logistics
• Travel & Hospitality
• Manufacturing
• Other

SIP Trunking Services Market, By Region

• North America
  • United States
  • Canada
  • Mexico
• Europe
  • France
  • United Kingdom
  • Italy
  • Germany
  • Spain
• Asia Pacific
  • China
  • India
  • Japan
  • Australia
  • South Korea
• South America
  • Brazil
  • Argentina
  • Colombia
• Middle East & Africa
  • South Africa
  • Saudi Arabia
  • UAE

Competitive Landscape

Company Profiles: Detailed analysis of the major companies present in the Global SIP Trunking Services Market.

Available Customizations:

Global SIP Trunking Services Market report with the given market data, TechSci Research offers customizations according to a company's specific needs. The following customization options are available for the report:

Company Information

• Detailed analysis and profiling of additional market players (up to five).

Table of Contents

1. Product Overview

• 1.1. Market Definition
• 1.2. Scope of the Market
  • 1.2.1. Markets Covered
  • 1.2.2. Years Considered for Study
  • 1.2.3. Key Market Segmentations

2. Research Methodology

• 2.1. Objective of the Study
• 2.2. Baseline Methodology
• 2.3. Key Industry Partners
• 2.4. Major Association and Secondary Sources
• 2.5. Forecasting Methodology
• 2.6. Data Triangulation & Validation
• 2.7. Assumptions and Limitations

3. Executive Summary

• 3.1. Overview of the Market
• 3.2. Overview of Key Market Segmentations
• 3.3. Overview of Key Market Players
• 3.4. Overview of Key Regions/Countries
• 3.5. Overview of Market Drivers, Challenges, Trends

4. Voice of Customer

5. Global SIP Trunking Services Market Outlook

• 5.1. Market Size & Forecast
  • 5.1.1. By Value
• 5.2. Market Share & Forecast
  • 5.2.1. By Organization Size (Small Businesses, Mid-Sized Businesses, Large Enterprises)
  • 5.2.2. By End-User (Banking, Financial Services, Insurance (BFSI), Education, Retail, Healthcare, Transportation & Logistics, Travel & Hospitality, Manufacturing, Other)
  • 5.2.3. By Region
  • 5.2.4. By Company (2025)
• 5.3. Market Map

6. North America SIP Trunking Services Market Outlook

• 6.1. Market Size & Forecast
  • 6.1.1. By Value
• 6.2. Market Share & Forecast
  • 6.2.1. By Organization Size
  • 6.2.2. By End-User
  • 6.2.3. By Country
• 6.3. North America: Country Analysis
  • 6.3.1. United States SIP Trunking Services Market Outlook
    • 6.3.1.1. Market Size & Forecast
      • 6.3.1.1.1. By Value
    • 6.3.1.2. Market Share & Forecast
      • 6.3.1.2.1. By Organization Size
      • 6.3.1.2.2. By End-User
  • 6.3.2. Canada SIP Trunking Services Market Outlook
    • 6.3.2.1. Market Size & Forecast
      • 6.3.2.1.1. By Value
    • 6.3.2.2. Market Share & Forecast
      • 6.3.2.2.1. By Organization Size
      • 6.3.2.2.2. By End-User
  • 6.3.3. Mexico SIP Trunking Services Market Outlook
    • 6.3.3.1. Market Size & Forecast
      • 6.3.3.1.1. By Value
    • 6.3.3.2. Market Share & Forecast
      • 6.3.3.2.1. By Organization Size
      • 6.3.3.2.2. By End-User

7. Europe SIP Trunking Services Market Outlook

• 7.1. Market Size & Forecast
  • 7.1.1. By Value
• 7.2. Market Share & Forecast
  • 7.2.1. By Organization Size
  • 7.2.2. By End-User
  • 7.2.3. By Country
• 7.3. Europe: Country Analysis
  • 7.3.1. Germany SIP Trunking Services Market Outlook
    • 7.3.1.1. Market Size & Forecast
      • 7.3.1.1.1. By Value
    • 7.3.1.2. Market Share & Forecast
      • 7.3.1.2.1. By Organization Size
      • 7.3.1.2.2. By End-User
  • 7.3.2. France SIP Trunking Services Market Outlook
    • 7.3.2.1. Market Size & Forecast
      • 7.3.2.1.1. By Value
    • 7.3.2.2. Market Share & Forecast
      • 7.3.2.2.1. By Organization Size
      • 7.3.2.2.2. By End-User
  • 7.3.3. United Kingdom SIP Trunking Services Market Outlook
    • 7.3.3.1. Market Size & Forecast
      • 7.3.3.1.1. By Value
    • 7.3.3.2. Market Share & Forecast
      • 7.3.3.2.1. By Organization Size
      • 7.3.3.2.2. By End-User
  • 7.3.4. Italy SIP Trunking Services Market Outlook
    • 7.3.4.1. Market Size & Forecast
      • 7.3.4.1.1. By Value
    • 7.3.4.2. Market Share & Forecast
      • 7.3.4.2.1. By Organization Size
      • 7.3.4.2.2. By End-User
  • 7.3.5. Spain SIP Trunking Services Market Outlook
    • 7.3.5.1. Market Size & Forecast
      • 7.3.5.1.1. By Value
    • 7.3.5.2. Market Share & Forecast
      • 7.3.5.2.1. By Organization Size
      • 7.3.5.2.2. By End-User

8. Asia Pacific SIP Trunking Services Market Outlook

• 8.1. Market Size & Forecast
  • 8.1.1. By Value
• 8.2. Market Share & Forecast
  • 8.2.1. By Organization Size
  • 8.2.2. By End-User
  • 8.2.3. By Country
• 8.3. Asia Pacific: Country Analysis
  • 8.3.1. China SIP Trunking Services Market Outlook
    • 8.3.1.1. Market Size & Forecast
      • 8.3.1.1.1. By Value
    • 8.3.1.2. Market Share & Forecast
      • 8.3.1.2.1. By Organization Size
      • 8.3.1.2.2. By End-User
  • 8.3.2. India SIP Trunking Services Market Outlook
    • 8.3.2.1. Market Size & Forecast
      • 8.3.2.1.1. By Value
    • 8.3.2.2. Market Share & Forecast
      • 8.3.2.2.1. By Organization Size
      • 8.3.2.2.2. By End-User
  • 8.3.3. Japan SIP Trunking Services Market Outlook
    • 8.3.3.1. Market Size & Forecast
      • 8.3.3.1.1. By Value
    • 8.3.3.2. Market Share & Forecast
      • 8.3.3.2.1. By Organization Size
      • 8.3.3.2.2. By End-User
  • 8.3.4. South Korea SIP Trunking Services Market Outlook
    • 8.3.4.1. Market Size & Forecast
      • 8.3.4.1.1. By Value
    • 8.3.4.2. Market Share & Forecast
      • 8.3.4.2.1. By Organization Size
      • 8.3.4.2.2. By End-User
  • 8.3.5. Australia SIP Trunking Services Market Outlook
    • 8.3.5.1. Market Size & Forecast
      • 8.3.5.1.1. By Value
    • 8.3.5.2. Market Share & Forecast
      • 8.3.5.2.1. By Organization Size
      • 8.3.5.2.2. By End-User

9. Middle East & Africa SIP Trunking Services Market Outlook

• 9.1. Market Size & Forecast
  • 9.1.1. By Value
• 9.2. Market Share & Forecast
  • 9.2.1. By Organization Size
  • 9.2.2. By End-User
  • 9.2.3. By Country
• 9.3. Middle East & Africa: Country Analysis
  • 9.3.1. Saudi Arabia SIP Trunking Services Market Outlook
    • 9.3.1.1. Market Size & Forecast
      • 9.3.1.1.1. By Value
    • 9.3.1.2. Market Share & Forecast
      • 9.3.1.2.1. By Organization Size
      • 9.3.1.2.2. By End-User
  • 9.3.2. UAE SIP Trunking Services Market Outlook
    • 9.3.2.1. Market Size & Forecast
      • 9.3.2.1.1. By Value
    • 9.3.2.2. Market Share & Forecast
      • 9.3.2.2.1. By Organization Size
      • 9.3.2.2.2. By End-User
  • 9.3.3. South Africa SIP Trunking Services Market Outlook
    • 9.3.3.1. Market Size & Forecast
      • 9.3.3.1.1. By Value
    • 9.3.3.2. Market Share & Forecast
      • 9.3.3.2.1. By Organization Size
      • 9.3.3.2.2. By End-User

10. South America SIP Trunking Services Market Outlook

• 10.1. Market Size & Forecast
  • 10.1.1. By Value
• 10.2. Market Share & Forecast
  • 10.2.1. By Organization Size
  • 10.2.2. By End-User
  • 10.2.3. By Country
• 10.3. South America: Country Analysis
  • 10.3.1. Brazil SIP Trunking Services Market Outlook
    • 10.3.1.1. Market Size & Forecast
      • 10.3.1.1.1. By Value
    • 10.3.1.2. Market Share & Forecast
      • 10.3.1.2.1. By Organization Size
      • 10.3.1.2.2. By End-User
  • 10.3.2. Colombia SIP Trunking Services Market Outlook
    • 10.3.2.1. Market Size & Forecast
      • 10.3.2.1.1. By Value
    • 10.3.2.2. Market Share & Forecast
      • 10.3.2.2.1. By Organization Size
      • 10.3.2.2.2. By End-User
  • 10.3.3. Argentina SIP Trunking Services Market Outlook
    • 10.3.3.1. Market Size & Forecast
      • 10.3.3.1.1. By Value
    • 10.3.3.2. Market Share & Forecast
      • 10.3.3.2.1. By Organization Size
      • 10.3.3.2.2. By End-User

11. Market Dynamics

• 11.1. Drivers
• 11.2. Challenges

12. Market Trends & Developments

• 12.1. Merger & Acquisition (If Any)
• 12.2. Product Launches (If Any)
• 12.3. Recent Developments

13. Global SIP Trunking Services Market: SWOT Analysis

14. Porter's Five Forces Analysis

• 14.1. Competition in the Industry
• 14.2. Potential of New Entrants
• 14.3. Power of Suppliers
• 14.4. Power of Customers
• 14.5. Threat of Substitute Products

15. Competitive Landscape

• 15.1. AT&T, Inc.
  • 15.1.1. Business Overview
  • 15.1.2. Products & Services
  • 15.1.3. Recent Developments
  • 15.1.4. Key Personnel
  • 15.1.5. SWOT Analysis
• 15.2. 8&8, Inc.
• 15.3. Bandwidth Inc.
• 15.4. BT Group Plc
• 15.5. Lumen Technologies
• 15.6. GTT Communications
• 15.7. Verizon Communications Inc.
• 15.8. Colt Technology Services Group Limited
• 15.9. Deutsche Telekom AG
• 15.10. Gamma Communications Plc

16. Strategic Recommendations

17. About Us & Disclaimer