In 2025, businesses are increasingly adopting cloud-based telephony systems integrated with CRM (Customer Relationship Management) to streamline customer interactions, improve efficiency, and drive sales. These cloud-based telephony systems help teams manage calls, track customer interactions, and automate workflows—all from a single platform. With seamless CRM integration, cloud-based telephony systems ensure businesses stay connected with customers while enhancing productivity. Here are 11 affordable cloud-based telephony systems with CRM integration, with Frejun standing out as the best choice for businesses looking for AI-driven communication and marketing automation.
1) FreJun
FreJun is a revolutionary tool crafted to enhance your sales initiatives. It effortlessly integrates with many popular CRMs like HubSpot and PipeDrive, thereby automating a wide range of customer communication processes. Apart from the integration, the auto-dial function of FreJun particularly standss out. It allows your agents to automatically dial multiple numbers straight from the CRM. And that’s not even the best part. If a call goes unanswered, FreJun promptly moves on to the next number in the queue, maintaining a continuous call flow.
Key features: Call routing, virtual number, autodial, reports & analytics, call transcript, voice broadcast, and CRM integration.
Pricing: The basic plan starts at $16.99/mo
G2: 4.9 out of 5
2) Zadarma
Zadarma is a robust communication solution that is also affordable at the same time. The tool integrates with popular CRMs like Zoho, HubSpot, and Salesforce. This popular telephone system caters to the diverse needs of businesses across industries. Apart from the CRM integration, if he had to pick one amazing feature of Zadarma, it has to be its virtual phone numbers. With a coverage of over 100 countries, this platform enables businesses of all sizes to establish a local presence anywhere on the planet.
Key features: Speech analytics, call forwarding, callback button, call tracking, CRM integration, and video conferencing
Pricing: The paid plans start at $44/mo for 10 users.
G2: 3.8 out of 5
3) Ringover
Ringover is a popular business phone system that bridges the gap between your associates and prospects irrespective of their location. The platform can be accessed either via a dedicated mobile app or a web app. The learning curve of the platform is quite flat and you can start using it straightaway. Ringover can be integrated with Salesforce, Zoho, HubSpot, ActiveCampaign, Clientify, and many more. This is particularly helpful for those who do not want to keep their data separately in two different systems.
Key Features – Smart call routing, IVR, advanced call statistics, call recording, and HD video calls.
Pricing– The most basic plan costs $19 per user per month.
G2 – 4.7 out of 5
4) Toky
The next affordable cloud-based telephone system on the list is Toky. Renowned for its smooth integration with various business tools, especially CRMs, Toky ensures that you always have a single source of truth for all communication data. Apart from the integration, Toky comes with a powerful call-forwarding feature that redirects calls from prospects to the agent’s personal phone numbers in case they are on the move. This ensures that they never miss an opportunity to communicate with a prospect or a customer.
Key features: Phone trees, call filter, call history, call transfer, speech-to-text, call recording, and call monitoring.
Pricing: The basic plan starts at $25/mo
G2: 3.7 out of 5
5) CallHippo
CallHippo is a virtual phone system that is known for its collaboration capabilities. The platform claims to integrate with 100+ CRM platforms, including the not-so-popular ones. So, if you are a business having a relatively new or unknown CRM, then CallHippo might be a good choice if you do not want to spend too much time integrating the two platforms. Apart from this, CallHippo comes loaded with a customisable IVR system that lets you build amazing call-routing experiences for your callers.
Key features: Power dialer, call forwarding, call transfer, call queuing, call barging, call recording, and call analytics.
Pricing: The basic paid plan starts at $18/mo.
G2 Review: 4.4 out of 5
6) RingCentral
RingCentral utilises VoIP technology to guarantee superior voice communication over the internet. However, this platform is majorly known for its seamless integration with CRMs like Salesforce, Zoho, and HubSpot. Apart from this, many users love its flexibility and scalability as there is no reliance on a conventional phone infrastructure. This considerably reduces the cost of installation and operation. The customisable call routing feature of this platform always ensures that calls are efficiently directed to the appropriate department or individual, thereby enhancing the overall customer experience.
Key features: Call recording, visual voicemail,, vanity numbers, answering rules, shared lines, and call park.
Pricing: The basic plan starts at $30/mo
G2 Review: 3.9 out of 5
7) Vonage
Vonage is a powerful business telephone system that has a plethora of calling features. But unlike other tools on this list, it has limited integrations with CRMs. But apart from that, it is known for its Call Flip feature which lets you transfer an ongoing call between devices. For instance, with a tap of a buton, you can transfer a call from a desk phone to a mobile phone. Customers also find the Call Park of Vonage pretty useful. This lets you place a call on hold and then pick it up from another phone within the organisation.
Key features: Call recording, mobile app, call park, call flip, call forwarding, call rerouting, and call tagging.
Pricing: The basic plan starts at $13.99
G2 Review: 4.3 out of 5
Further Reading: Top 7 Alternatives to Vonage
8) Aircall
Aircall is a cloud-based communication system that is more suitable for large enterprises due to its steep pricing plans. The platform integrates with a variety of CRM platforms including Salesforce, HubSpot, ActiveCampaign, Invelo, Clavio, to name a few. Thanks to these integrations, your associates need not switch between different tabs while making calls as all the information is available on a single window. This considerably improves their productivity and lets them spend their time on more valuable tasks.
Key features: Call conference, call routing, virtual call centre, ring groups, call queuing, and call transcription.
Pricing: The basic plan starts at $40/mo/license.
G2: 4.3 out of 5
9) CallRail
CallRail is the only platform you need to easily convert your leads into buying customers. Once it is integrated with your desired CRM, your associates are equipped with all the necessary information about the prospect to drive the call in a way they want. The CRM integration is aptly supported by the in-built analytics engine that offers amazing insights to help your associates drive the call with more confidence. The platform also has a myriad of automation capabilities that ensure that your sales campaigns run on autopilot all the time.
Key Features – Call transcripts, keyword analysis, call tracking, form tracking, call recording, and custom form builder.
Pricing– The most basic plan starts at $ 40 per month.
G2 Ratings – 4.4 out of 5
10) DialPad
Dialpad is a fully AI-powered cloud-based telephone system equipped with some of the most advanced features available. Its voice intelligence technology is truly one of a kind that offers your associates real-time insights and assistance during calls. With Dialpad, your associates can make quick and informed decisions at the same time so that customers have a great experience with your brand. Dialpad can be integrated with popular CRMs like Zoho, Salesforce, HubSpot, and even Zendesk.
Key features: Three-way calling, call routing, call transfer, power dialer, web conferencing, and dial-in number
Pricing: The basic plan starts at $23/mo
G2 Review: 4.3 out of 5
11) Ring.io
The last cloud-based telephone system to integrate with CRMs is Ring.io. The goal of Ring.io is single – to ensure that your sales team can close more deals in as little time as possible. The automation capabilities of Ring.io are so powerful that your associates can focus only on selling and forget about every other task as it will be taken care of by the platform. This platform can be integrated with most of the CRMs available today. Post integration, you can call directly from the CRM.
Key Features – Click-to-call, call notes, call logging, caller ID, voicemail, call recording, call monitoring, and call queuing.
Pricing – The basic plan costs $69 per user per month.
G2 Ratings – 4.4 out of 5
Telephony Systems by Business Type
| Business Type | Recommended Telephony System | Key Benefit |
| Startups | Frejun, Zoho Voice, JustCall | AI automation, affordability |
| Customer Support Teams | Aircall, Freshcaller, CloudTalk, Frejun | Intelligent call routing |
| Sales Teams | Frejun, Dialpad, JustCall | Predictive dialing, CRM sync |
| Enterprise Businesses | RingCentral, 8×8, Vonage, Frejun | Global communication, scalability |
| Remote Teams | Google Voice, Frejun, Aircall | Cloud-based accessibility |
Conclusion
Modern business communication demands modern, innovative solutions. The solutions highlighted in this post not only streamline operations but also enhance customer relationships. Each of these platforms can be integrated with different CRMs so that you can experience the power of a unified communication system. So, investing in a cloud-based telephone system with CRM integration will not only meet your current needs but also position your business for future success.
In 2025, Frejun stands out as the best cloud-based telephony system due to its AI-driven automation, CRM integration, and predictive dialing capabilities. Whether you’re a startup, enterprise, or sales team, adopting a smart cloud telephony system can help streamline communication, improve efficiency, and drive business growth.
Further reading: Top 11 Predictive Outbound Dialer Software
A writer/business analyst, who enjoys expressing creativity through painting during leisure hours. Embracing the 'Workcation' philosophy, he seamlessly blends the craft of writing with the allure of exploring new destinations.