8 Greatest VoIP Suppliers in 2025: My Sincere Assessment

Gone are the times when conventional cellphone calls have been the medium of communication. Most companies financial institution on VoIP suppliers to optimize development.

As a gross sales affiliate in my early skilled days, I’ve gathered hands-on expertise working with VoIP suppliers. I additionally personally consider it to be the best gross sales channel.

I had my fair proportion of challenges with VoIP suppliers that finally led to missed gross sales offers. Typically, the inbound contact knowledge wasn’t saved, and different occasions, there have been lengthy ready strains, latency points, jitters, or name disconnections.

Even in the present day, gross sales improvement representatives (SDRs) encounter the identical situation as companies fail to spend money on a suitable VoIP supplier that workers can use remotely, combine with CRM, convert recordings to voicemail, and maintain minimal latency and name disturbance. 

To find out the most effective VoIP choices for creating uninterrupted gross sales calls, I experimented with the 8 greatest VoIP suppliers in 2025. 

Whereas evaluating a VoIP service, many further {hardware} necessities and investments have to be checked and sorted. 

Certain, VoIP is a cloud-based phone change service that gives corporations a cloud-calling infrastructure, however it comes with extra {hardware} necessities and hidden prices.

8 greatest VoIP suppliers I strongly suggest 

After I was in gross sales, I used to be not a part of the decision-making staff that shortlisted, tried, and broke down software program functionalities. However regardless that I did not play a component in shortlisting a VoIP supplier, I used to be a part of the outbound gross sales staff that explored and used it.

By summarizing my expertise of two years working with these cloud phone change software program, I can say that an excellent VoIP system ought to provide extensions to a distant workforce, combine with CRM, and keep suitable because the enterprise expands. 

What makes a VoIP supplier value it: my sincere take

As an erstwhile gross sales skilled, I might say that jitter-free, clear, high-quality audio change with VoIP software program is essential to name middle groups.

However, as a enterprise seeking to collect intel, it’s worthwhile to consider contract worth, trial intervals, configuration value, {hardware} necessities (like IP telephones and adapters), and UI/UX compatibility to combine it along with your current name middle stack.

That can assist you select correctly, I’ve listed down a couple of vital parameters to test whereas evaluating a VoIP system:

• Name high quality and reliability: I shortlisted the suppliers that provided seamless name connectivity and high-resolution audio administration. If the decision high quality is not clear, the remaining does not matter. I seemed for suppliers that provided excessive definition (HD) voice, minimal jitter and latency, and a strong uptime service stage settlement (SLA) together with a user-friendly interface. A strong VoIP system ought to be constructed on current knowledge facilities and have computerized failover in place.
• Integration capabilities: I at all times checked whether or not the VoIP system integrates with my current instruments like CRM platforms (Salesforce or HubSpot, amongst others), helpdesk software program, ticketing instruments, and so forth. This protects time, avoids knowledge silos, and streamlines the agent workflow.
• Scalability and multi-location assist: I additionally seemed for scalable and versatile options for rising corporations. Whether or not it’s a 10-person staff or a 100-seat name middle, I want an answer that scales effortlessly. I additionally seemed for instruments that supply companies like distant brokers and a number of workplace areas and have options like dynamic name routing or digital extensions. 
• Safety and Compliance: Safety can’t be compromised at any stage. I checked for VoIP instruments adhering to correct requirements like GDPR, HIPAA, or PCI-DSS. A superb VoIP supplier ought to have end-to-end name encryption and knowledge privateness monitoring to make sure your knowledge exchanges are secure from malware.
• Whole value of possession (TCO): I additionally scrutinized all the value of the VoIP system, together with extra costs, configuration prices, setup prices, and so forth. I additionally factored in worldwide calling charges, roaming, add-on options, and assist costs. A low-cost plan is not low-cost in the event you pay further for each helpful characteristic.
• Help and repair stage agreements (SLAs): I additionally ensured that these options provide 24×7 dwell assist (not only a chatbot), a transparent SLA, and a responsive customer support staff. Quick, educated assist is non-negotiable in a name middle surroundings.
• Price-effectiveness and ROI: I additionally shortlisted VoIP suppliers that supply detailed trials and demos of the device. An economical resolution is not at all times the most affordable however a device that provides a return on funding. I attempted instruments that steadiness worth with efficiency, options, and future scalability. I seemed for clear pricing fashions, bundled options (like auto-dialers or name analytics), and versatile plans that assist develop the enterprise. 

True to my evaluation, these VoIP options provide constant name high quality, encryption, international performance, minimal disruptions, readability, and cost-effectiveness. 

Out of the quite a few VoIP techniques that I initially got down to consider, I shortlisted the highest 8 VoIP techniques that you could implement with a softphone or a VoIP cellphone.

This record beneath incorporates real evaluations from the VoIP suppliers class web page. To be included on this class, software program should,

• Present VoIP PBX techniques for companies and/or provide a VoIP softphone utility.
• Supply obligatory {hardware}, ought to an answer require it
• Embrace options that help in regulating incoming calls. 

*This knowledge was pulled from G2 in 2025. Some evaluations might have been edited for readability.  

Zoom Office is an all-in-one voice telephony and AI-powered collaboration device that gives uninterrupted video conferencing, high-quality calling, and sooner distant communication along with your groups all by way of a unified platform.

After I first began Zoom Office, I used to be curious whether or not it may work as a full-blown VoIP resolution for my staff. The brief reply? Sure, it does an honest job at it.

What I respect about Zoom is the way it bundles its communication stack, like voice, video, and messaging, into one platform. I used Zoom’s VoIP performance alongside conferences and chat, and it supplies options like voice calling, voicemail, name routing, and even auto attendants.

It is like a digital workplace cellphone system however far more versatile within the cloud. Particularly when I’m leaping between units or working remotely, it retains me linked without having conventional {hardware}.

Nevertheless, the platform has a couple of downsides. The VoIP a part of the device works, however in comparison with devoted platforms, it feels prefer it’s nonetheless catching up in some areas. I’ve had moments the place I needed the call-handling options, like voicemail transcription or superior analytics, have been extra strong.

Integrating VoIP cleanly into bigger enterprise workflows additionally takes some setup. That being mentioned, the decision high quality is strong. It doesn’t really feel like an inexpensive add-on. They’ve clearly invested in ensuring the audio is obvious and constant, even on decrease bandwidth. Quite a lot of of us in my group have change into snug utilizing it as a major method of connecting, particularly for exterior purchasers who do not at all times need to hop on to a video name.

Total, Zoom Office is a sensible and environment friendly ecosystem that gives internet-based name connectivity, cloud calling, and superior name analytics to provoke conversations along with your purchasers and stakeholders. 

What I dislike about Zoom Office

• Whereas Zoom has no main downsides, I really feel that typically audio goes out within the conferences, which has additionally been echoed in G2 evaluations.
• One other situation I bumped into was microphone connectivity, which, as talked about within the G2 evaluations, induced me to drop a couple of calls alongside the best way.

What do G2 customers dislike about Zoom Office:

“I do not like that typically it makes your necessary improve. Often, it really works advantageous, however proper earlier than you might be about to hop on a name or Zoom, it upgrades, and it might take a couple of seconds. It is irritating if it occurs when you find yourself operating late to a gathering.”

– Zoom Office Assessment, Alex R.

Nextiva is an AI-based cloud telephony and buyer expertise device that gives companies companies like name transcription, name recording, call-to-voicemail, and cloud knowledge storage to prepare their outbound lead workflows.

After I first began in search of a dependable VoIP resolution, I had no concept what number of choices have been on the market. Nevertheless, after doing my very own comparisons, I landed on Nextiva, which has been the most effective choice for my enterprise.

What impressed me was the clear and constant name high quality, even when working remotely or juggling a number of conversations directly. The voice readability was on one other stage in comparison with what I might skilled with earlier suppliers. It made our day-to-day operations, from calls to shopper coordination, really feel extra skilled and fewer hectic.

I instantly observed how strong and dependable their VoIP platform is. It gives real-time name routing, built-in texting choices, and even voicemail-to-email, which has saved me extra time than I can depend. 

The little issues, like not lacking an vital message as a result of it is ready in your inbox with a transcription, make an enormous distinction. We additionally began utilizing their contact middle software program, a part of the VoIP system, which utterly reworked how we work together with our purchasers. Options like detailed name analytics and clever routing helped us reply shortly and keep on prime of every little thing.

I additionally need to spotlight their customer support philosophy. I’ve handled tech distributors earlier than, and often, it’s a nightmare as a consequence of lengthy maintain occasions, robotic solutions, and unhelpful reps. Not right here. Each time we had a difficulty, we received by way of to somebody from the customer support staff inside minutes.

That mentioned, Certain, Nextiva has its set of downsides. There’s room for enchancment, particularly in consumer autonomy and third-party integrations. I struggled a bit with the chatbot performance, as I received delayed solutions for my queries. At some occasions, the AI agent was not obtainable on the chat, which induced delays.

Total, Nextiva is a strong and dependable VoIP resolution that optimizes outbound and inbound calling and gives detailed calling studies. This permits us to automate our development and construct a hassle-free shopper expertise. 

What I dislike about Nextiva:

• Whereas Nextiva is nice, the system, sadly, dropped my calls a number of occasions, after which, when my name was picked up by a human, I dropped once more with out a follow-up name to reconnect, as additionally echoed in G2 evaluations.
• One other gripe I had was that the cellphone replace induced the app to have many points over a time period, as additionally mentioned in G2 evaluations.

What do G2 customers dislike about Nextiva:

“The automated cellphone system dropped my name so many occasions, after which when my name was picked up by a human, I used to be dropped once more with out a follow-up cellphone name to reconnect. That was some extent of competition. The supply of customer support and tech assist by way of cellphone may very well be higher.”

– Nextiva Assessment, Rahab B.

OpenPhone is a personal, dependable VoIP supplier that integrates calls, texts, and messages into one app to raised serve customers. It additionally gives AI-powered transcription to summarize calls, extract essential knowledge, and combine with CRM.

The OpenPhone interface actually stood out to me. It was clear and intuitive and labored simply as nicely on the desktop because it did on cellular, which is large for me as a result of I’m bouncing between units all day. I can add shopper information, set customized voicemail greetings, and seamlessly change between completely different numbers within the app.

It additionally consists of team-wide shared inboxes, so irrespective of who responds, the entire staff stays within the loop. We might even arrange roles and permissions for higher name routing, which is particularly helpful for managing assist vs. gross sales calls.

The decision high quality has been constantly strong, and I like the way it lets me file calls, which is ideal after I’m juggling a number of conversations and need to circle again later. 

Considered one of my favourite options is the AI-powered name summaries. They save me from typing out notes and assist me keep on prime of follow-ups. I’ve additionally began leaning extra towards integration. OpenPhone integrates with Slack, HubSpot, and even Zapier, which opens limitless workflow automation potentialities. As an example, I’ve arrange computerized notifications for missed calls or voicemails in Slack, which helps our groups collect knowledge even when we aren’t within the app.

The pricing is surprisingly honest, particularly contemplating the provision of options like name recording, voicemail transcription, customized enterprise hours, and speak to syncing within the subscription tiers. OpenPhone’s premium plans are beneficiant, particularly the usual and premium tiers. These plans embrace integrations, auto-replies, snippets, analytics, and multi-number assist.

Nevertheless, no app is ideal, and OpenPhone does have its drawbacks. I’ve run into a couple of quirks, just like the app often ignoring my cellphone’s “Do Not Disturb” setting or the dearth of customized ringtones (minor situation, however nonetheless).

Considered one of my teammates talked about that the administration monitoring options may very well be extra intuitive, and we struggled to correctly set personal and shared entry. Different teammates identified that whereas the voicemail and name transcription typically work nice, there are occasions when messages do not seem instantly.

And in the event you rely closely on worldwide texting or receiving messages from banks or monetary companies (like PayPal), there is likely to be limitations, possible as a consequence of how OpenPhone handles shortcodes and service partnerships.

That being mentioned, OpenPhone is among the most agile and dependable options to supply a high-speed name community, retailer inbound knowledge, and route lively calls to the proper particular person whereas offering customer-centric options to a enterprise. 

What I dislike about OpenPhone

• I really feel like typically there’s a slight delay over the road, and staff members discover themselves speaking to one another, as echoed within the G2 evaluations.
• I felt like there was an absence of superior customization choices for workflows and automation. This has additionally been mirrored in G2 evaluations. 

What do G2 customers dislike about OpenPhone

“We like nearly every little thing with OpenPhone. The one factor I’ve discovered complicated is the automated texting when a cellphone name goes unanswered. I had a tough time turning it off. We additionally had a difficulty with the AI voicemail message not with the ability to deal with Spanish. The English, although, was nice. Spanish gave us a very good snicker however did not sound very skilled.”

– OpenPhone Assessment, Vera B.

Webex Calling is a dependable VoIP device that gives PBX infrastructure for corporations in order that they will handle incoming calls with out switching to a different phone change community. It additionally shops your name particulars, gives transcription, and extra. 

What stood out about Webex calling was how simple it’s to arrange. It gives a user-friendly, easy-to-navigate, and intuitive dashboard, even for non-tech-savvy customers.

The entire course of, together with quantity provisioning and consumer assignments, took me lower than an hour.

One of many strongest facets of Webex Calling is the high-quality audio and video. Significantly, the high-definition (HD) calling and noise cancellation options make a noticeable distinction, particularly throughout longer conferences or worldwide calls.

Name high quality stays constant even when bandwidth dips barely, although like several VoIP service, it nonetheless often struggles below poor web circumstances. On a very good connection, you get crystal-clear conversations with barely any latency.

The platform is designed round a centralized cloud PBX system that seamlessly manages calls, extensions, and voicemail. I can hop between my desk cellphone, cellular app, and desktop shopper with out lacking a beat. It additionally forwards the calls robotically and integrates voicemails with emails and transcriptions.

The platform helps superior options like name queuing, hunt teams, shared strains, and even location-based routing. In case you are in a bigger group, you possibly can profit rather a lot from this flexibility. 

There’s additionally a number of consideration to the cellular and desktop app expertise. The UI is smooth and responsive. Options like one-click assembly scheduling, integration with Outlook and Google Calendar, and real-time collaboration (screen-sharing, whiteboarding, and in-call chat) get rid of the necessity for a number of platforms.

In actual fact, Webex Calling blends with the complete Cisco Webex Suite. So, in case you are already utilizing Webex Conferences or Webex Groups, the calling performance is an current a part of the workflow.

Nevertheless, this platform additionally has a couple of drawbacks. I felt that there was a studying curve, particularly when configuring superior options or establishing auto attendants for a number of areas.

Additionally, whereas the bottom expertise is clean, most of the extra highly effective admin instruments and analytics are solely accessible within the premium plans. The pricing, too, is a bit on the upper facet, notably for small companies and startups. You get what you pay for, however it’s undoubtedly an funding, particularly for companies with a good finances.

Although the free model is beneficiant with options like 50-minute conferences and fundamental calling, this does not work for established companies. You would possibly need to have a look at the paid tiers in case you are scaling your small business. The enterprise tier bundle gives options like name recording, name park/pickup, name analytics, and integration with CRM platforms.

Total, Webex Calling is a dependable Cisco device that gives some reliability, makes use of TLS/SRTP encryption to guard calls, and seamlessly manages cloud name operations.

What I dislike about Webex Calling:

• Though Webex Calling gives a glitch-free calling expertise, there have been a couple of occasions that I couldn’t register for an hour or extra of Webex Cloud, as additionally mirrored in G2 evaluations.
• I really feel that the admin portal can use extra customization choices to set consumer permissions or configure name movement guidelines, as highlighted in G2 evaluations.

What do G2 customers dislike about Webex Calling:

“It has a dependency on PSTN or ISDN. If you wish to reroute your calls from an SIP trunk, it’s worthwhile to deploy an on-site gadget that may deal with the visitors from an SIP trunk. It might be cool to combine with distributors aside from Cisco for SBC options or API integration to deal with this type of visitors.”

– Webex Calling Assessment, Gerardo H.

RingEx is a sophisticated cellphone and name analytics resolution that helps provoke 15-20 calls a day, generate GPT-powered name summaries, and optimize the calling workflow for workers with superior AI/ML characteristic integrations.

The AI performance of RingEx is solely superior. It isn’t just a few gimmick; it helps with documenting calls, summarizing voicemails, and nudging me when I’m drifting from the decision script. It is virtually as if I’ve a quiet and environment friendly name assistant within the background.

I additionally need to spotlight the flexibility RingEx gives. When you set the VoIP, you possibly can make or obtain calls out of your desk cellphone, cellular app, or perhaps a softphone in your laptop computer and change between them.

Options like “name flip” and the seamless handoff throughout units make distant work really feel much less fragmented. After I’m on the transfer, the cellular app involves my rescue. It’s responsive and does not really feel like a watered-down model of the desktop expertise. 

On the admin facet, the admin portal makes it simple to handle customers and tweak name routing routes. Even our IT staff, who’re sometimes buried in complexity, has mentioned that the backend is refreshingly easy. The dashboard provides us real-time name analytics, which has made monitoring KPIs and agent efficiency a lot simpler.

The platform additionally has a couple of drawbacks. Whereas the AI options are useful, they will typically really feel just a little limiting. Name transcriptions typically misread completely different name accents or jargon. Additionally, voicemail delays may be annoying. Typically, I’m ready method too lengthy for a voice message to seem within the system.

Reporting is one other space the place the device can enhance. Some customers on my staff have flagged that the studies aren’t at all times correct or updated, which might throw off our weekly evaluations.

There’s additionally some friction relating to integrations. I actually want RingEx may play nicer with instruments like Cinic or sure CRMs with out the clunky wait-around. And sure, the platform typically feels permission-heavy. I am unable to at all times edit phrases or responses within the AI settings due to admin-level restrictions that do not make sense in day-to-day use.

Additional, the premium and superior tiers unlock options like multi-level IVRs, superior name analytics, and integration with third-party CRMs and productiveness instruments. However in the event you’re working the free model, you would possibly really feel a bit restricted.

Total, RingEx gives superior calling options, voicemail to e mail, name recording, and superior name analytics to set strong calling protocols and keep a clean contact middle infrastructure community. 

What I dislike about RingEx

• Though RingEx gives a strong platform, I felt that the cellular app was a bit gradual and typically froze after I tried to enter contact info. G2 evaluations have highlighted this.
• It took me a while to determine how you can get began with the platform and customise every little thing the best way I wished it. G2 evaluations have highlighted this. 

What do G2 customers dislike about RingEx

“It typically takes some time to pay money for buyer assist if you want them. Additionally, often, messages come by way of a bit late, however it’s not a deal breaker. The essential plan is a bit limiting. We needed to improve to get extra individuals in our video calls, which wasn’t talked about clearly upfront. And whereas the AI notetaking is nice, typically it misses vital factors when a number of persons are speaking directly.”

– RingEx Assessment, BP R. 

GoTo Join helps you provoke calls from both a VoIP cellphone, an IP cellphone, a mobile phone, or a softphone and supplies the pliability of monitoring name conversations, offering transcriptions, or providing real-time name routing to handle purchasers correctly.

What I cherished about GoTo Join is the simplicity of the platform. I did not want an IT knowledgeable to onboard my staff. The interface is clear and intuitive.

Considered one of my favourite options is the Dial Plan Editor. It provides me a lot flexibility to route calls precisely how I need. Whether or not I’m establishing customized workflows for various departments or managing after-hours routing, this Dial Plan Editor gives the choices.

I additionally cherished the inclusion of the cellular app. I can seamlessly change from my desk cellphone to my mobile phone, which is superior for days when I’m bouncing between conferences or working remotely. Plus, the decision high quality has been strong for probably the most half. There have been no situations of dropped calls and no dip in sound high quality, no matter whether or not I used to be on my desk or not.

I additionally respect how user-friendly every little thing is. A couple of of my colleagues aren’t that tech-savvy, however even that they had no downside adapting to it.

Additionally, the customer support was nice and responsive. I’ve had some genuinely useful interactions with assist after I bumped into points. But it surely was just a little hit-and-miss. Typically, particularly when coping with billing or porting numbers from different carriers or community operators, assist can really feel gradual and unresponsive.

One of many issues I did not understand till I received deeper into the platform was how completely different the expertise is relying on the plan tier. I began with a extra fundamental setup, however as soon as I upgraded to the Commonplace plan, the vary of options actually opened up. The bottom tier provides you necessities like voice, video, and name recording, in addition to integrations with platforms like Salesforce or Microsoft Groups. 

For instance, with a premium tier, I may use real-time dashboards and historic reporting to trace name efficiency, which might be actually useful if we have been managing a distant staff.

Additional, the desktop app is not good. I’ve had points with it crashing or freezing randomly, and logging in by way of the net portal has failed a couple of occasions. And whereas the cellphone system {hardware} has nice assist, updates can typically trigger minor disruptions.

Total, GoTo Join is a strong VoIP supplier that optimizes your customer support workflows and supplies seamless calling integrations to handle and enhance name efficiency and effectivity.

What I dislike about GoTo Join:

• Typically, the software program is just a little glitchy. That resulted in missed cellphone calls on my finish. The identical has been mirrored in G2 evaluations as nicely.
• The desktop utility was a bit gradual. I needed to shut it utterly to refresh the information I used to be seeing, or it might present individuals within the queue who weren’t. The identical has been highlighted in G2 evaluations. 

What do G2 customers dislike about GoTo Join:

“The one dislike is prospects typically say the decision in dropping out and in typically. Getting solely a part of the dialog may be irritating at occasions. Presumably as a consequence of being an web cellphone service. This will occur on my cellular or desktop cellphone, if this may very well be fastened then the service is ideal.”

– GoTo Join Assessment, Keith F.

Dialpad Join is a dependable telephony platform that gives video conferencing skills, messaging, name connectivity, and voicemail companies to enterprises with minimal {hardware} necessities. It additionally gives AI-based performance to facilitate interactions and keep name repositories. 

I have been utilizing Dialpad Join for some time now, and I’ve to say, it nails a number of what I search for in a contemporary enterprise cellphone system. The very first thing that basically stood out to me was the cross-platform expertise throughout units. Whether or not I’m utilizing the cellular app, the desktop app, and even the desk cellphone, every little thing feels linked and constant.

I can begin a name on my laptop, transfer it to my cellphone, and switch it to a colleague with out lacking a beat. The cross-device sync makes an enormous distinction, particularly when you find yourself continuously on the transfer and switching between setups.

I additionally cherished how simple it’s to make use of. Organising new customers, making calls, and sending messages have been by no means this simple and well-managed. The UI is clear and intuitive, and the decision high quality is sort of crystal clear.

I’ve hardly ever had a dropped name or a poor connection. It additionally provided AI-powered name options like real-time transcription and voicemail-to-text. I do not at all times have time to hearken to voicemails or scribble notes throughout conferences, so getting correct name summaries and searchable name transcripts actually saved the day for me.

I’ve tried the Commonplace and Professional plans, and the distinction between them is fairly clear. The usual plan is strong in case you are operating a small staff and simply want fundamental calling, messaging, and integrations like Google Workspace or Microsoft 365.

Nevertheless, the Professional plan gives options like CRM integrations (Salesforce, HubSpot or Zoho), native quantity assist in over 70 international locations, and superior analytics dashboards.