The communications landscape has evolved drastically in recent years. Increasingly, old-fashioned telephone systems are shutting down, forcing companies to explore the benefits of SIP and cloud-based voice solutions. Fortunately for many brands, shifting into this new world delivers a host of advantages, from reduced costs to greater scalability and agility.
By 2032, the market for cloud telephony services is expected to reach a value of approximately $51.5 billion. Growth in the landscape is happening as a result of various factors, from the ISDN/PTSN switch-off initiatives happening around the world to the increasing demand for remote and hybrid work. Transitioning into the cloud provides companies with more freedom to empower their employees wherever they are, innovate at speed, and reduce inefficiencies.
The challenge for most brands is finding the right cloud voice or SIP vendor capable of managing the transition into the new age of communications. Here are some of the top solution providers available in 2024:
- AT&T
- BT
- Nuwave
- Verizon
- Pure IP
- Gamma
- CallTower
- NTT
- Deutsche Telekom
- Intrado
- Orange Business Services
- Tata Communications
- BICS
- IntelePeer
- DSTNY
- Enreach
- Sinch
- Six Degrees
- Telefónica Global Solutions
- Telstra International
- Vodafone Business
- Bandwidth
- ULAP
- Continuant
- Fuse2
- AWS (Amazon Web Services)
- Ericsson
AT&T
A well-known provider of telecommunications solutions, AT&T offers a range of services and tools to businesses looking to leverage the benefits of the cloud. AT&T’s portfolio includes everything from a comprehensive cloud-based platform with API access to existing UC solutions, as well as VOIP services, SIP Trunking, and more.
AT&T’s business-focused solutions provide companies with access to toll-free calling solutions, advanced replacements for traditional phone lines, and even dedicated cloud systems for Microsoft Teams. Companies can even leverage a variety of mobile-ready services for employees who need to stay connected to the business environment on the move. AT&T also recently partnered with Cisco on a Webex solution for mobile calling, “Webex Go”.
BT
Offering a variety of consumer and business-focused telecommunications products, BT (British Telecommunications), has a strong reputation in the voice landscape. The BT Business segment delivers numerous cloud voice and SIP solutions for modern brands, including the comprehensive BT Cloud Voice service, which comes with Cisco Webex built-in.
HT’s cloud-based communication ecosystem includes support for multiple devices and allows organisations to configure their ecosystem according to their specific needs. BT promises worldwide coverage and has been named by Gartner as one of the UK’s leading service providers. The solutions from BT also come with access to 24/7 dedicated support and security features to reduce the risk of common fraud and privacy issues.
Nuwave
Nuwave Communications is a dedicated cloud voice provider offering platform services and solutions for both Microsoft Teams and Zoom voice. Serving enterprises, carriers, operators, and service providers, Nuwave’s portfolio includes the iPILOT ecosystem for scalable global communications delivered on a carrier-agnostic basis.
With dedicated solutions for Microsoft Teams and Zoom, Nuwave allows business owners and service providers to create highly customizable communication stacks, with carrier management, phone number assignment, service reports and more already built-in. The company also provides access to PBX assessment and disaster planning tools to help businesses stay one step ahead of potential communication issues.
Verizon
Serving enterprise business leaders, service providers, and partners alike, Verizon’s portfolio of business communication products covers everything from VoIP to SIP solutions. The company has its own dedicated cloud-based business phone system in the form of One Talk, a mobile-first solution which adapts to the needs of any business user.
Verizon also offers flexible VoIP lines with built-in call management features and security, as well as their own dedicated mobile app. Product features offered by Verizon include a range of valuable solutions, including business continuity tools, auto attendants, call history, and control systems, so companies can manage and monitor communications remotely. Plus, Verizon also sells its own range of VoIP devices for companies in search of endpoints.
Pure IP
Operating on a global level, Pure IP provides access to cloud-based enterprise-level voice, secured to suit business needs. The company’s range of flexible communication solutions can integrate with existing platforms and tools, including Microsoft Teams. Additionally, the brand provides access to end-to-end coverage, whether companies are operating on a hybrid, on-premises or cloud-based level.
Pure IP’s SeRVE collection of cloud-based products is custom-made for companies taking advantage of existing carrier networks and solutions like Microsoft Teams. Pure IP even has its own Operator Connect solution for Teams, which allows users to manage their voice ecosystem within their existing collaboration and productivity app. Solutions are also available for Zoom, Cisco Webex, and standard PTSN replacement.
→ Explore Pure IP
Gamma
Gamma Telecom is a full-service communications vendor, offering a range of tools from comprehensive SaaS services like line rental to fraud management and security tools. The Gamma Cloud voice ecosystem includes a variety of products to choose from, such as SIP Trunking and call management, Horizon Collaborate for teamwork, and Horizon Contact.
The Horizon Hosted Business phone system is a complete IP-based solution for companies moving away from on-premises technology into the agile cloud environment. Features include remote 360-degree call management, audio and quality of service monitoring, and end-to-end security. Additionally, users can even leverage Horizon as a solution for voice-enabling Microsoft Teams.
→ Explore Gamma
CallTower
Focusing on unified communications, collaboration, and contact centre solutions, CallTower addresses the needs of countless companies around the world, with international coverage and customisable communication services. The brand’s range of solutions includes dedicated systems for Zoom, Cisco Webex, and Microsoft Teams.
At the heart of the CallTower Portfolio is the CT Cloud Solutions collection, which provides businesses with access to flexible cloud voice, contact centre and meeting tools. CallTower also offers a range of SIP trunks; SIP DID packages, and a CT Cloud Unite system which allows users to combine multiple communication tools into a single ecosystem. Cloud fax and compliant call recording capabilities are also available.
→ Explore CallTower
NTT Global Networks
Offering a range of simple communication tools for business leaders, NTT addresses numerous enterprise needs. The brand’s portfolio includes access to network consulting services, a global IP network, and even private 5G solutions. The cloud voice solution from NTT delivers global, cloud-native communications for customer service and internal unified communications.
Users can choose to integrate their on-premises or PBX solutions with cloud tools or create an entirely new ecosystem in the cloud environment. The universal and interoperable tools work with a range of existing products and systems. Plus, NTT offers call plans across 39 countries, with data centres located around the globe. NTT also promises a highly resilient wholly-owned network with ultra-fast connectivity speeds and built-in tools for security.
→ Explore NTT Global Networks
Deutsche Telekom
With numerous partnerships with companies such as Microsoft and RingCentral, Deutsche Telekom offers versatile and scalable cloud communication tools. The brand’s open Telekom cloud allows users to connect their own devices to the company’s Telekom infrastructure without compromising on privacy and security. Functions include everything from mobile device integration to audio conferencing, presence information, and intelligent call routing.
Deutsche Telekom can act as a voice enabler for existing ecosystems like Microsoft Teams and has its own mobile solutions. Plus, the organization offers a variety of SIP configuration and trunking options for businesses shifting into the cloud environment. Customers can even leverage various accompanying products and services from Deutsche Telekom’s partner network.
→ Explore Deutsche Telekom
Intrado
Providing 911 technology solutions for wireless carriers, traditional phone companies, and VoIP operators, Intrado focuses on serving vendors across the communication landscape. The company’s broad portfolio of tools and services includes everything from network engineering and call handling tools to NG911 solutions, carrier services for VoIP and OTT communications and more.
With built-in security and management tools, Intrado’s cloud voice solutions allow carriers and service providers to offer their customers a variety of useful tools for digital transformation. Intrado also has its own dedicated Microsoft Teams voice solution, as well as resources and value-added support for direct routing and Operator Connect.
→ Explore Intrado
Orange Business Services
The Orange Business Services branch of the Orange company deals with delivering communication functionality to companies across the globe. Orange Business Talk is a software-defined collection of voice solutions with a comprehensive management platform included, allowing organisations more control over their phone numbers, routing requirements, and quality assurance.
As well as providing companies with the technology they need for internal communications and UC, Orange Business Services also has an integrated international call collection service for contact centres. The company even supports direct routing and operator connect capabilities for Microsoft Teams and offers SIP trunking services for both mobile and desktop devices.
→ Explore Orange Business Services
Tata Communications
Facilitating borderless growth with enterprise voice solutions, Tata Communications offers a range of managed VoIP services and SIP solutions. The company supports business conversations through a robust, global network enabled via partnerships with tier-1 carriers. Tata also provides access to a range of communication deployment options, including a contact centre as a service offering, Global SIP Connect, UCaaS, and a CPaaS ecosystem.
The SIP Trunking services can be accessed either in combination with Tata Communications’ enterprise VoIP solutions, or users can bring their own carrier into the platform. Like many voice vendors, Tata Communications offers integrations with Microsoft Teams. It also has an integrated managed service solution known as GlobalRapide 2.0.
→ Explore Tata Communications
BICS
Working with MVNOs, network providers, and mobile operators, BICS provides various communication solutions for the cloud-focused landscape. The brand can deliver cloud numbers instantly, alongside Bring your Own Carrier services for communication strategies. For Microsoft Teams users, BICS also supports Operator Connect and Direct Routing.
Alongside PSTN as a service, SMS and voice APIs, and a range of other cloud-based voice solutions, BICS also enables businesses to take advantage of reliable international SIP trunking technology. The company’s communication tools comply with a range of regulatory requirements and can scale across geographies according to different business needs.
→ Explore BICS
IntelePeer
IntelePeer, a privately held communications company, specializes in cloud-based solutions with built-in disruptive technology, such as artificial intelligence and automation. Suitable for both unified communications and contact centres, the IntelePeer platform includes access to not just voice capabilities but also self-service tools and ticket management.
IntelePeer can provide access to CPaaS technologies for companies looking to build communications into their existing apps and tools. The brand also delivers inbound and outbound calling options for Cisco Webex and other major UC platforms such as Microsoft Teams. Plus, IntelePeer also allows users to leverage tools like mobile messaging, smart multichannel communications and spam protection for internal and external calls.
→ Explore IntelePeer
DSTNY
Business communications software vendor DSTNY serves both enterprises and service providers alike. The company’s cloud-based voice system can work with a range of desk phones and endpoints, as well as softphone applications. DSTNY also has its own mobile app available for remote workers and the ConnectMe web-based platform for provisioning and voice management.
DSTNY can aid companies looking to leverage fixed and mobile convergence capabilities, as well as unified communications tools. Service packages offer customisation flexibility for unique business needs, as well as high levels of security and a 99.9% uptime guarantee. For service providers and partners, DSTNY also has its own Operator Connect accelerator service.
→ Explore DSTNY
Enreach
Delivering a variety of broadband, mobile, and cloud phone services to business leaders, Enreach has a flexible and scalable portfolio in the UC landscape. The company offers cloud phone systems which can work from any location or device. They have built-in softphone functionality, as well as call recording and security features included for compliance and peace of mind.
The Enreach cloud phone systems can enable video conferencing, on-hold marketing capabilities, call management, and fixed mobile convergence. Plus, users can either leverage the full Enreach cloud PBX system or connect the technology available to their existing platforms, such as Microsoft Teams. There’s even the option to leverage contact centre tools for customer experience management.
→ Explore Enreach
Sinch
Approved for Operator Connect in 2022, Sinch offers various cloud voice and SIP trunking services for companies leveraging the new age of cloud communications. Alongside tools for Microsoft Teams and existing UC platforms, Sinch offers a range of APIs for verification, video, voice, and SMS messaging in the CPaaS space.
Partners and service providers can leverage white-labelled solutions to expand their real-time communications portfolio. Sinch also allows companies to leverage tools connected to the UC landscape, such as chatbots and AI systems, and contact centre solutions with omnichannel communication capabilities. The Sinch network benefits from global reach, with more than 600 direct operator connections and various OTT channels.
→ Explore Sinch
Six Degrees
Otherwise known as 6DG, Six Degrees is a cloud communications vendor with its own dedicated data and cloud services platform. The company supports brands in developing their communication infrastructure with SD-WAN capabilities. Business leaders can also take advantage of a Six Degrees Agile workspace for collaboration and customer service management.
Six Degrees offers global communication connectivity for internal and external conversations, with deployment options available through the public, private, and hybrid cloud. Additionally, companies can also take advantage of a range of cyber security, privacy, and compliance services, to help protect against accidental data breaches and attacks.
→ Explore Six Degrees
Telefónica Global Solutions
Recognized by industry analysts like Gartner, Telefónica Global Solutions offers access to wholesale solutions for solution providers and distributors in the communications space. The Cloud UC portfolio offered by the brand comes with global coverage and end-to-end support from systems integrators. Users can leverage a range of mobility licences, web portal management tools, and conferencing and collaboration packages from the same provider, with scalable and simple pricing structures.
Telefónica Global Solutions has its own connectivity hub for tracking call quality and conversational metrics. Users can also take advantage of international special numbers, global SIP trunking, and voice fraud management through TUKU.
→ Explore Telefónica Global Solutions
Telstra International
Telstra International offers wholesale voice solutions, cloud voice services, and VoIP technologies to a range of business leaders. The company provides access to a range of cloud calling services, with flexible phone numbers, voice lines, auto attendants and more. Plus, companies can leverage Telstra’s technology in unison with existing tools like Cisco Webex and Microsoft Teams.
Telstra’s SIP Connect and Business SIP services ensure companies of all sizes can access agile voice and calling capabilities through the internet. Users can keep their existing phone system and phone numbers and manage everything through a unified and remote portal. Plus, mobility features are available as an add-on service.
Vodafone Business
With inbound and outbound voice options, as well as a range of mobile and connectivity options, Vodafone Business supports all kinds of companies in making the transition into the cloud. The Vodafone Business Interactive voice environment provides access to a complete call control system within the cloud, while Vodafone One Net Business connects landline and mobile communications.
Vodafone also has a comprehensive cloud-based PBX solution which can adapt to suit any business needs, from simple telephony requirements to full unified communications and collaboration services. Users can even leverage tools for campaign analytics and call tracking, privacy and compliance.
Bandwidth
Global communications provider Bandwidth delivers various cloud voice tools to business leaders, including voice APIs, calling solutions, and inbound and outbound calling apps. The elastic SIP trunking service offered by the business comes with integrated E911 support, and usage-based pricing, allowing companies to consolidate legacy SIP vendors and remove on-premises equipment.
Users can order and migrate numbers using a Dashboard and API suite, without disrupting performance in the workforce. Plus, the SIP trunking services available from Bandwidth can be integrated with existing UCaaS and contact center platforms such as RingCentral, Genesys, and the Microsoft Teams platform.
ULAP
Network vendor and communications provider ULAP delivers a host of tools for communication and collaboration, including dedicated tools for Microsoft Teams, the contact center, and Zoom. At the heart of the ULAP cloud voice offering is “ULAP Voice” a dedicated PBX hosted on the ULAP Connect Network, with scalable calling capabilities.
The voice solution comes with a variety of common features such as call forwarding, SIP forking, speed dial, and call monitoring and transferring tools. Additionally, the system capacity can be adjusted and increased effortlessly using a ULAP cloud-based portal. ULAP can also offer SBCaaS solutions, SIP trunking, and cloud migration services.
Continuant
Unified Communication vendor, Continuant produces tools and platforms for businesses making their way into the cloud landscape. The company offers assistance with everything from Teams Connect calling and Direct Routing, to Avaya PBX maintenance. Continuant’s hybrid calling solution even gives business leaders the freedom to connect their on-premises and cloud-based tools.
The Hybrid Cloud calling platform supports organizations in maintaining existing PBXs, while centralising their communication strategy. Continuant can help businesses consolidate their network, transition PSTN connectivity via SIP trunks, and even bundle Microsoft Teams into their cloud strategy.
Fuse2
Otherwise known as Fuse2, Fuse is a Communications provider offering global voice to businesses around the world. Fuse 2 delivers VoIP call termination services, with an international network of data centres which can break out and redirect ingoing and outgoing calls. The global unified services include access to more than 40 countries for local break-out and break-in services.
Users also gain access to local emergency services and special numbers for VoIP calls. Plus, businesses can port existing local numbers into their VoIP network, purchase new numbers with local area codes, and access DID/DDI numbers for over 100 countries. There’s also an advanced routing engine with carrier-grade Ribbon SBC infrastructure.
AWS
Amazon Web Services (AWS) offers SIP trunking capabilities through its Amazon Chime Voice Connector service.
AWS SIP trunking allows customers to use their existing VoIP infrastructure and phone numbers with Amazon Chime Voice Connector without requiring additional hardware or software. AWS’s global network, scalability, security, and pay-as-you-go pricing model can also benefit customers.
Ericsson
The Ericsson SIP Trunking service connects enterprise communication systems, such as PBX, UC, and contact center solutions, to public telecom networks using an IP connection. It offers regulatory, connection, and control services, as well as supplementary services.
The service allows businesses to consolidate their infrastructure, resulting in simplified operations and increased efficiency.
Organizations that switch to Ericsson SIP Trunking experience immediate cost savings and accelerated returns on investment. Additionally, the solution provides increased flexibility and scalability, allowing for the easy addition of new offices and users across multiple locations.
