Session Border Controller SBC Sales

Session Border Controller SBC Sales Market Outlook

The global Session Border Controller (SBC) market is projected to reach approximately USD 4.5 billion by 2035, exhibiting a robust compound annual growth rate (CAGR) of around 10.2% from 2025 to 2035. This growth is driven primarily by the increasing demand for secure and efficient communication solutions, particularly within enterprise settings. As businesses continue their digital transformation initiatives, the requirement for reliable and secure VoIP communication has surged, thereby amplifying the need for SBCs. Additionally, the rise of Unified Communications as a Service (UCaaS) and the proliferation of cloud-based services have catalyzed the adoption of SBCs, enabling organizations to manage and protect real-time communication traffic effectively. Furthermore, with telecommunication service providers looking to enhance their network capabilities and ensure regulatory compliance, the SBC market is poised for significant growth in the coming years.

Growth Factor of the Market

The Session Border Controller market is experiencing growth due to multiple interrelated factors. Firstly, the increasing volume of voice and multimedia traffic over IP networks necessitates robust solutions capable of managing this traffic effectively while ensuring security. Secondly, the surge in remote working practices, especially in response to the COVID-19 pandemic, has significantly accelerated adoption rates of cloud-based communication solutions, where SBCs play a crucial role in safeguarding communication channels. Furthermore, rising cybersecurity threats have prompted organizations to invest in advanced security measures like SBCs, ensuring secure communications in an increasingly interconnected world. Additionally, the expanding adoption of Internet of Things (IoT) devices and applications is driving demand for SBCs to facilitate secure connections among devices. Lastly, the continued evolution of Unified Communications and collaboration platforms offers SBCs new opportunities for integration and optimization, further propelling market growth.

Key Highlights of the Market

• Projected growth to USD 4.5 billion by 2035.
• CAGR of 10.2% from 2025 to 2035.
• Increasing demand for secure communication solutions.
• Growth driven by digital transformation and cloud services.
• Significant adoption among telecommunication service providers.

By Product Type

Hardware SBC:

Hardware Session Border Controllers provide dedicated physical appliances that manage session signaling and media streams across IP networks. They are primarily used by telecommunication service providers and enterprises that demand high performance and reliability for their voice and video communication. The hardware SBCs are designed to handle large volumes of simultaneous calls while providing essential features such as encryption, transcoding, and protocol interworking. Furthermore, they are crucial in ensuring network security by preventing unauthorized access and safeguarding against attacks, making them a preferred choice for businesses that prioritize robust security measures. The demand for hardware SBCs is expected to rise in environments with stringent security requirements and where high capacity is essential, thus making it a critical segment of the overall SBC market.

Software SBC:

Software Session Border Controllers are increasingly popular due to their flexibility and scalability. These virtualized solutions can be deployed on standard servers or in cloud environments, offering organizations the ability to adapt to changing communication needs without significant hardware investments. Software SBCs provide essential functionalities such as security, interoperability, and network management, making them ideal for businesses looking to enhance their VoIP capabilities without the burden of maintaining physical hardware. As enterprises continue to migrate towards cloud environments and demand solutions that can be easily integrated with existing infrastructure, the software SBC segment is expected to see significant growth. Additionally, the ability to provide similar functionalities as hardware SBCs while being more cost-effective makes software-based solutions attractive to small and medium enterprises.

Cloud-based SBC:

Cloud-based Session Border Controllers represent the latest evolution in SBC technology, offering scalable, on-demand solutions hosted in the cloud. This segment is particularly appealing to organizations looking for cost-effective solutions that do not require extensive on-premises infrastructure. Cloud-based SBCs provide the same benefits as traditional SBCs, including enhanced security, traffic management, and seamless integration with cloud communication platforms. The growing adoption of UCaaS and the rapid shift towards cloud computing are driving the demand for cloud-based SBC solutions. Furthermore, the ability to provide real-time updates and security patches through cloud deployment ensures that organizations can maintain a high level of security without the need for on-site maintenance, which is becoming increasingly important in today's fast-paced business environment.

By Application

Unified Communication:

Unified Communication applications are one of the key drivers of the SBC market, as they integrate various communication channels such as voice, video, and messaging into a single platform. SBCs play a critical role in ensuring seamless connectivity and interoperability among different communication systems used by enterprises. By managing the signaling and media streams, SBCs help enhance the user experience by providing clear and reliable communication. The growing trend of remote work and the need for effective collaboration tools have led to increased investments in Unified Communication solutions, consequently fueling the demand for SBCs. Furthermore, the ability of SBCs to provide advanced security features, such as encryption and authentication, is paramount in protecting sensitive communication data, making them indispensable in unified communication environments.

Voice Over Internet Protocol (VoIP):

The VoIP application segment remains a significant contributor to the SBC market as organizations increasingly adopt VoIP technology for cost-effective and efficient communication. SBCs facilitate secure VoIP communications by managing voice traffic, ensuring quality of service (QoS), and providing protection against threats such as denial-of-service attacks. As the adoption of VoIP solutions grows among both enterprises and service providers, so does the need for SBCs to maintain the integrity and quality of voice calls. Additionally, the rising trend of BYOD (Bring Your Own Device) policies within organizations underscores the importance of secure VoIP communications, further driving the demand for SBCs capable of addressing these security challenges.

Public Switched Telephone Network (PSTN) Networks:

The integration of Session Border Controllers with Public Switched Telephone Network (PSTN) is increasingly crucial as organizations seek to bridge traditional telephony with modern IP communication. SBCs facilitate this transition by enabling seamless connectivity between PSTN and VoIP networks, ensuring users can communicate effectively regardless of their network type. This capability is particularly vital for businesses with existing PSTN infrastructure seeking to leverage new VoIP technologies while maintaining legacy systems. As more companies aim to enhance their communication capabilities and reduce costs associated with traditional telephony, the SBC market will likely continue to see growth in this application segment, further solidifying the importance of SBCs in modern communication frameworks.

Others:

Other applications of Session Border Controllers include customer support and contact center solutions, where SBCs ensure reliable and secure communication channels for agents and customers alike. Additionally, there are niche applications in industries such as healthcare, where secure and reliable communication is vital for patient care. SBCs can also play a vital role in ensuring compliance with regulations such as HIPAA by offering secure channels for sensitive patient information shared over IP networks. As organizations across various sectors recognize the importance of secure communication, the demand for SBCs in these 'other' applications is set to grow, contributing further to the overall SBC market expansion.

By Voice Over Internet Protocol

Session Initiation Protocol (SIP):

Session Initiation Protocol (SIP) is the most commonly used protocol in VoIP communications, and SBCs play a critical role in managing SIP traffic. By controlling and securing SIP sessions, SBCs provide essential functionalities such as call establishment, termination, and routing. The growing use of SIP among enterprises and service providers for VoIP communications has increased the demand for SBCs that can efficiently handle SIP traffic. Moreover, SBCs ensure interoperability between different SIP systems, which is vital for organizations utilizing multiple vendors and solutions. As the adoption of SIP continues to expand, especially in unified communication systems, the SBC market is anticipated to grow, driven by the need for effective management of SIP sessions.

H.323:

The H.323 protocol is an ITU-T standard for multimedia communications over IP networks, traditionally used in video conferencing and VoIP applications. SBCs are essential in managing H.323 traffic, providing gateways to integrate with SIP-based systems. As organizations modernize their communication systems and adopt a mixed environment of H.323 and SIP protocols, the need for SBCs capable of effectively managing this traffic will be critical. Additionally, SBCs can address interoperability challenges between H.323 and other communication protocols, ensuring seamless connectivity for organizations utilizing legacy systems alongside contemporary solutions. The growth of video conferencing solutions, especially in the wake of remote work trends, further bolsters the demand for SBCs capable of managing H.323 traffic.

By Public Switched Telephone Network

ISDN:

Integrated Services Digital Network (ISDN) is a circuit-switched telephone network system that enables the simultaneous transmission of voice and data over traditional telephone lines. SBCs are instrumental in managing the integration of ISDN with VoIP and other digital communication channels, facilitating seamless transitions between different communication technologies. As businesses seek to leverage their existing ISDN infrastructure while transitioning to more modern communication solutions, the demand for SBCs that support ISDN will remain strong. Furthermore, SBCs help maintain service quality and security during the conversion process, ensuring that organizations can effectively manage their communication needs without compromising performance.

PSTN Gateway:

PSTN gateways link traditional PSTN systems with IP networks, and SBCs are essential for managing and securing these connections. They ensure the integrity of voice communications and provide necessary features such as transcoding, call routing, and security protocols. As businesses increasingly adopt hybrid communication models that combine PSTN with VoIP, the role of SBCs becomes even more critical. They not only facilitate efficient communication across network types but also ensure that organizations are compliant with regulatory standards associated with voice communications. The continued reliance on PSTN in various industries underscores the importance of SBCs in managing these connections effectively.

By User

Telecommunication Service Providers:

Telecommunication service providers represent a significant user segment for SBCs, as they require robust solutions to manage and protect large volumes of voice and multimedia traffic. SBCs provide crucial functionalities such as security, interoperability, and network management, enabling service providers to deliver reliable communication services to their customers. With the increasing complexity of networks and the rise of cloud-based services, SBCs are essential in ensuring that service providers can efficiently manage their infrastructure while maintaining quality of service. The demand for SBCs among telecommunication providers is expected to grow as they seek to enhance their offerings and address the challenges posed by evolving communication technologies.

Enterprises:

Enterprises, regardless of their size, are significant users of SBC technology, as they strive to enhance their communication capabilities while ensuring security and compliance. SBCs offer enterprises the ability to manage their voice and video traffic effectively, providing interoperability among various communication platforms and applications. As organizations increasingly adopt unified communication solutions and VoIP technology, the need for SBCs to facilitate secure and reliable communications becomes paramount. Additionally, enterprises are looking for solutions that can easily integrate with existing infrastructure, further driving the demand for SBCs designed for enterprise environments.

Government Organizations:

Government organizations have unique communication needs that require robust security and reliability. SBCs are used extensively in this sector to manage and secure communication traffic, ensuring that sensitive information remains protected. The increasing focus on cybersecurity and the need for compliance with regulations has prompted government agencies to invest in SBC technology. Furthermore, as these organizations adopt modern communication systems, the demand for capable SBCs to bridge the gap between legacy and new technologies will continue to grow, making government organizations a vital user segment for the SBC market.

Others:

Other user segments for Session Border Controllers include educational institutions, healthcare providers, and financial services, each with specific communication requirements. Educational institutions utilize SBCs to manage secure communications for online classes and administrative functions, while healthcare providers require SBCs to ensure secure communications compliant with regulations like HIPAA. Financial services organizations also depend on SBCs to protect sensitive financial data during communications. As various sectors recognize the importance of secure and reliable communications, the demand for SBCs across these 'other' user segments is anticipated to rise, contributing to the overall growth of the SBC market.

By Enterprise Size

Small and Medium Enterprises:

Small and Medium Enterprises (SMEs) increasingly recognize the value of Session Border Controllers as they expand their communication capabilities and strive for growth. SBCs offer SMEs a cost-effective solution to achieve secure and reliable VoIP communications without the need for significant capital investment in hardware. As more SMEs adopt cloud-based communication solutions, the demand for SBCs that can easily integrate with these platforms is expected to rise. Furthermore, the growing awareness of cybersecurity threats compels SMEs to invest in SBC technology to safeguard their communications, thus driving the market for SBCs tailored to the needs of smaller enterprises.

Large Enterprises:

Large enterprises are significant consumers of SBC technology, as they require robust solutions to manage extensive communication networks and ensure the integrity of their communications. SBCs provide essential functionalities such as traffic management, security, and interoperability among various communication systems, which are crucial for large organizations. Furthermore, as large enterprises continue to invest in unified communication solutions and digital transformation initiatives, the demand for advanced SBCs capable of supporting complex network environments will grow. Large organizations often prioritize scalability and performance, making specialized SBC solutions tailored to their requirements vital for their operations.

By Region

The North American region holds a significant share of the global Session Border Controller market and is anticipated to continue its dominance through 2035. The market in North America is projected to grow at a CAGR of approximately 11% during the forecast period, driven by high adoption rates of VoIP technologies and the increasing emphasis on cybersecurity measures among enterprises. Telecommunication service providers in this region are rapidly adopting SBCs to enhance network performance and security, further propelling market growth. The presence of leading SBC vendors in North America also contributes to the region's market expansion, as they innovate and provide advanced solutions that meet the evolving needs of customers.

Europe is another prominent region in the SBC market, with significant growth anticipated as organizations embrace digital transformation and modern communication technologies. The European market is expected to witness steady growth, driven by the increasing demand for secure communication solutions among enterprises and government organizations. The implementation of stringent data protection regulations, such as GDPR, further drives the need for SBCs to ensure compliance and security in communications. As businesses continue to migrate to cloud-based platforms and adopt unified communication solutions, the SBC market in Europe is set to flourish.

Opportunities

The Session Border Controller market is ripe with opportunities, particularly as organizations increasingly adopt cloud-based communication solutions. The shift towards cloud technologies not only enhances operational efficiency but also necessitates robust security measures, paving the way for SBCs to play a critical role in protecting communication channels. Additionally, the emergence of 5G networks is expected to significantly impact the SBC market, as it will enable faster and more reliable communication services. As telecom operators upgrade their infrastructure to meet the demands of 5G, the need for SBCs capable of managing increased traffic and ensuring seamless connectivity will become paramount. Furthermore, the growing trend of remote work necessitates advanced collaboration tools, wherein SBCs can provide the necessary security and management functionalities.

Another noteworthy opportunity lies in the increasing focus on cybersecurity across various industries. As businesses become more aware of the threats posed by cyberattacks, the demand for SBCs that provide robust security measures to protect voice and video communications will rise. This is particularly relevant in highly regulated sectors such as finance and healthcare, where compliance with stringent regulations is essential. Additionally, the ongoing evolution of Unified Communications and the integration of artificial intelligence (AI) technologies present new avenues for SBCs to enhance their functionalities, offering advanced capabilities such as analytics and real-time monitoring, further driving market growth.

Threats

Despite the promising outlook for the Session Border Controller market, several threats could impede growth. One significant threat is the rapid pace of technological advancements, which can lead to obsolescence if SBC vendors fail to innovate continuously. As communication technologies evolve, solutions that do not adapt quickly enough may struggle to remain competitive, impacting market share. Additionally, the rise of open-source communication solutions may pose a challenge to traditional SBC vendors, as organizations seek cost-effective alternatives. The increasing sophistication of cyber threats also represents a concern, as SBCs must continually evolve their security features to combat emerging vulnerabilities effectively. Failure to address these threats comprehensively could hinder the overall growth of the SBC market.

Another challenge for the Session Border Controller market is the complex integration process often required for deploying SBC solutions within existing communication infrastructure. Many organizations may face difficulties in ensuring that their SBCs operate effectively with legacy systems and various communication protocols, potentially delaying implementation and driving up costs. Furthermore, the competition among SBC vendors is intensifying, with numerous players entering the market, which could lead to price wars and reduced profit margins for established businesses. This competitive landscape necessitates that vendors differentiate their offerings and provide unique value propositions to retain and attract customers.

Competitor Outlook

• Oracle Corporation
• AudioCodes Ltd.
• Ribbon Communications Inc.
• Cisco Systems, Inc.
• Avaya Inc.
• Genband Inc.
• NetAxis Solutions
• Innofield Solutions
• Sonus Networks
• ZTE Corporation
• Huawei Technologies
• Edgewater Networks
• Mitel Networks Corporation
• Acme Packet (now part of Oracle)
• Dialogic Corporation

The competitive landscape of the Session Border Controller market is characterized by a mix of established players and emerging entrants, each striving to capture market share and innovate within this dynamic sector. Leading vendors such as Oracle and Cisco have consolidated their positions by offering comprehensive SBC solutions that cater to a wide range of customer needs. These companies are heavily investing in research and development to enhance their product offerings, focusing on state-of-the-art security features and seamless integration with various communication platforms. Additionally, many of these established players are expanding their portfolios through strategic acquisitions, thereby increasing their capabilities and market presence, which allows them to remain competitive in an evolving market.

Emerging entrants and specialized vendors are also making their mark in the SBC market by offering niche solutions tailored to specific industry requirements. Companies like AudioCodes and Ribbon Communications are focusing on innovative approaches such as cloud-based SBCs and advanced security measures, attracting customers looking for cost-effective and efficient solutions. These entrants are often leveraging the growing demand for cloud communication and unified communication as a service (UCaaS) models to establish themselves in the market. As competition intensifies, vendors are increasingly differentiating themselves by providing exceptional customer service and post-sales support, which are becoming crucial factors influencing purchasing decisions.

Among the major competitors, Oracle Corporation stands out as a leader in the SBC space, offering a comprehensive suite of products capable of meeting the needs of both enterprises and service providers. Their advanced solutions provide robust security, scalability, and interoperability, which are essential for modern communication networks. Cisco Systems, another key player, is known for its extensive networking and communication products, allowing them to deliver integrated SBC solutions that enhance the overall user experience. Companies like Avaya and AudioCodes are also recognized for their innovative approaches to SBC technology, focusing on providing enhanced functionalities and superior performance that meet the evolving demands of their customers.

• 1 Appendix

  • 1.1 List of Tables
  • 1.2 List of Figures

• 2 Introduction

  • 2.1 Market Definition
  • 2.2 Scope of the Report
  • 2.3 Study Assumptions
  • 2.4 Base Currency & Forecast Periods

• 3 Market Dynamics

  • 3.1 Market Growth Factors
  • 3.2 Economic & Global Events
  • 3.3 Innovation Trends
  • 3.4 Supply Chain Analysis

• 4 Consumer Behavior

  • 4.1 Market Trends
  • 4.2 Pricing Analysis
  • 4.3 Buyer Insights

• 5 Key Player Profiles

  • 5.1 Avaya Inc.
    • 5.1.1 Business Overview
    • 5.1.2 Products & Services
    • 5.1.3 Financials
    • 5.1.4 Recent Developments
    • 5.1.5 SWOT Analysis
  • 5.2 Genband Inc.
    • 5.2.1 Business Overview
    • 5.2.2 Products & Services
    • 5.2.3 Financials
    • 5.2.4 Recent Developments
    • 5.2.5 SWOT Analysis
  • 5.3 Sonus Networks
    • 5.3.1 Business Overview
    • 5.3.2 Products & Services
    • 5.3.3 Financials
    • 5.3.4 Recent Developments
    • 5.3.5 SWOT Analysis
  • 5.4 AudioCodes Ltd.
    • 5.4.1 Business Overview
    • 5.4.2 Products & Services
    • 5.4.3 Financials
    • 5.4.4 Recent Developments
    • 5.4.5 SWOT Analysis
  • 5.5 ZTE Corporation
    • 5.5.1 Business Overview
    • 5.5.2 Products & Services
    • 5.5.3 Financials
    • 5.5.4 Recent Developments
    • 5.5.5 SWOT Analysis
  • 5.6 NetAxis Solutions
    • 5.6.1 Business Overview
    • 5.6.2 Products & Services
    • 5.6.3 Financials
    • 5.6.4 Recent Developments
    • 5.6.5 SWOT Analysis
  • 5.7 Edgewater Networks
    • 5.7.1 Business Overview
    • 5.7.2 Products & Services
    • 5.7.3 Financials
    • 5.7.4 Recent Developments
    • 5.7.5 SWOT Analysis
  • 5.8 Oracle Corporation
    • 5.8.1 Business Overview
    • 5.8.2 Products & Services
    • 5.8.3 Financials
    • 5.8.4 Recent Developments
    • 5.8.5 SWOT Analysis
  • 5.9 Cisco Systems, Inc.
    • 5.9.1 Business Overview
    • 5.9.2 Products & Services
    • 5.9.3 Financials
    • 5.9.4 Recent Developments
    • 5.9.5 SWOT Analysis
  • 5.10 Huawei Technologies
    • 5.10.1 Business Overview
    • 5.10.2 Products & Services
    • 5.10.3 Financials
    • 5.10.4 Recent Developments
    • 5.10.5 SWOT Analysis
  • 5.11 Innofield Solutions
    • 5.11.1 Business Overview
    • 5.11.2 Products & Services
    • 5.11.3 Financials
    • 5.11.4 Recent Developments
    • 5.11.5 SWOT Analysis
  • 5.12 Dialogic Corporation
    • 5.12.1 Business Overview
    • 5.12.2 Products & Services
    • 5.12.3 Financials
    • 5.12.4 Recent Developments
    • 5.12.5 SWOT Analysis
  • 5.13 Mitel Networks Corporation
    • 5.13.1 Business Overview
    • 5.13.2 Products & Services
    • 5.13.3 Financials
    • 5.13.4 Recent Developments
    • 5.13.5 SWOT Analysis
  • 5.14 Ribbon Communications Inc.
    • 5.14.1 Business Overview
    • 5.14.2 Products & Services
    • 5.14.3 Financials
    • 5.14.4 Recent Developments
    • 5.14.5 SWOT Analysis
  • 5.15 Acme Packet (now part of Oracle)
    • 5.15.1 Business Overview
    • 5.15.2 Products & Services
    • 5.15.3 Financials
    • 5.15.4 Recent Developments
    • 5.15.5 SWOT Analysis

• 6 Market Segmentation

  • 6.1 Session Border Controller SBC Sales Market, By User
    • 6.1.1 Telecommunication Service Providers
    • 6.1.2 Enterprises
    • 6.1.3 Government Organizations
    • 6.1.4 Others
  • 6.2 Session Border Controller SBC Sales Market, By Application
    • 6.2.1 Unified Communication
    • 6.2.2 Voice Over Internet Protocol (VoIP)
    • 6.2.3 Public Switched Telephone Network (PSTN) Networks
    • 6.2.4 Others
  • 6.3 Session Border Controller SBC Sales Market, By Product Type
    • 6.3.1 Hardware SBC
    • 6.3.2 Software SBC
    • 6.3.3 Cloud-based SBC
  • 6.4 Session Border Controller SBC Sales Market, By Enterprise Size
    • 6.4.1 Small and Medium Enterprises
    • 6.4.2 Large Enterprises

• 7 Competitive Analysis

  • 7.1 Key Player Comparison
  • 7.2 Market Share Analysis
  • 7.3 Investment Trends
  • 7.4 SWOT Analysis

• 8 Research Methodology

  • 8.1 Analysis Design
  • 8.2 Research Phases
  • 8.3 Study Timeline

• 9 Future Market Outlook

  • 9.1 Growth Forecast
  • 9.2 Market Evolution

• 10 Geographical Overview

  • 10.1 Europe - Market Analysis
    • 10.1.1 By Country
      • 10.1.1.1 UK
      • 10.1.1.2 France
      • 10.1.1.3 Germany
      • 10.1.1.4 Spain
      • 10.1.1.5 Italy
  • 10.2 Asia Pacific - Market Analysis
    • 10.2.1 By Country
      • 10.2.1.1 India
      • 10.2.1.2 China
      • 10.2.1.3 Japan
      • 10.2.1.4 South Korea
  • 10.3 Latin America - Market Analysis
    • 10.3.1 By Country
      • 10.3.1.1 Brazil
      • 10.3.1.2 Argentina
      • 10.3.1.3 Mexico
  • 10.4 North America - Market Analysis
    • 10.4.1 By Country
      • 10.4.1.1 USA
      • 10.4.1.2 Canada
  • 10.5 Middle East & Africa - Market Analysis
    • 10.5.1 By Country
      • 10.5.1.1 Middle East
      • 10.5.1.2 Africa
  • 10.6 Session Border Controller SBC Sales Market by Region

• 11 Global Economic Factors

  • 11.1 Inflation Impact
  • 11.2 Trade Policies

• 12 Technology & Innovation

  • 12.1 Emerging Technologies
  • 12.2 AI & Digital Trends
  • 12.3 Patent Research

• 13 Investment & Market Growth

  • 13.1 Funding Trends
  • 13.2 Future Market Projections

• 14 Market Overview & Key Insights

  • 14.1 Executive Summary
  • 14.2 Key Trends
  • 14.3 Market Challenges
  • 14.4 Regulatory Landscape

Segments Analyzed in the Report

The global Session Border Controller SBC Sales market is categorized based on

By Product Type

• Hardware SBC
• Software SBC
• Cloud-based SBC

By Application

• Unified Communication
• Voice Over Internet Protocol (VoIP)
• Public Switched Telephone Network (PSTN) Networks
• Others

By User

• Telecommunication Service Providers
• Enterprises
• Government Organizations
• Others

By Enterprise Size

• Small and Medium Enterprises
• Large Enterprises

By Region

• North America
• Europe
• Asia Pacific
• Latin America
• Middle East & Africa

Key Players

• Oracle Corporation
• AudioCodes Ltd.
• Ribbon Communications Inc.
• Cisco Systems, Inc.
• Avaya Inc.
• Genband Inc.
• NetAxis Solutions
• Innofield Solutions
• Sonus Networks
• ZTE Corporation
• Huawei Technologies
• Edgewater Networks
• Mitel Networks Corporation
• Acme Packet (now part of Oracle)
• Dialogic Corporation