8 Greatest VoIP Suppliers in 2025: My Trustworthy Overview

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 imagine it to be the simplest gross sales channel.

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

Even at present, gross sales growth representatives (SDRs) encounter the identical challenge as companies fail to put money into a suitable VoIP supplier that staff can use remotely, combine with CRM, convert recordings to voicemail, and maintain minimal latency and name disturbance. 

To find out one of the best VoIP choices for creating uninterrupted gross sales calls, I experimented with the 8 finest VoIP suppliers in 2025. 

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

Certain, VoIP is a cloud-based phone trade service that gives companies a cloud-calling infrastructure, but it surely comes with extra {hardware} necessities and hidden prices.

8 finest VoIP suppliers I strongly advocate 

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

By summarizing my expertise of two years working with these cloud phone trade software program, I can say that a really perfect VoIP system ought to supply 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 would say that jitter-free, clear, high-quality audio trade with VoIP software program is essential to name middle groups.

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

That will help you select properly, I’ve listed down just a few vital parameters to test whereas evaluating a VoIP system:

• Name high quality and reliability: I shortlisted the suppliers that supplied 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 supplied excessive definition (HD) voice, minimal jitter and latency, and a strong uptime service degree settlement (SLA) together with a user-friendly interface. A stable VoIP system ought to be constructed on present knowledge facilities and have automated failover in place.
• Integration capabilities: I all the time checked whether or not the VoIP system integrates with my present instruments like CRM platforms (Salesforce or HubSpot, amongst others), helpdesk software program, ticketing instruments, and many others. 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 firms. Whether or not it’s a 10-person workforce or a 100-seat name middle, I would like an answer that scales effortlessly. I additionally seemed for instruments that provide providers 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 great VoIP supplier ought to have end-to-end name encryption and knowledge privateness monitoring to make sure your knowledge exchanges are secure from malware.
• Complete value of possession (TCO): I additionally scrutinized the complete value of the VoIP system, together with extra expenses, configuration prices, setup prices, and so forth. I additionally factored in worldwide calling charges, roaming, add-on options, and assist expenses. A low-cost plan is not low-cost in case you pay further for each helpful characteristic.
• Assist and repair degree agreements (SLAs): I additionally ensured that these options supply 24×7 stay assist (not only a chatbot), a transparent SLA, and a responsive customer support workforce. Quick, educated assist is non-negotiable in a name middle atmosphere.
• Price-effectiveness and ROI: I additionally shortlisted VoIP suppliers that provide detailed trials and demos of the device. A cheap answer is not all the time the most affordable however a device that offers a return on funding. I attempted instruments that steadiness value 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 supply constant name high quality, encryption, world 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 listing beneath comprises real opinions from the VoIP suppliers class web page. To be included on this class, software program should,

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

*This knowledge was pulled from G2 in 2025. Some opinions could 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 means of a unified platform.

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

What I admire 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}.

Nonetheless, the platform has just a few 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 wanted 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 stable. It doesn’t really feel like an affordable add-on. They’ve clearly invested in ensuring the audio is obvious and constant, even on decrease bandwidth. Plenty of of us in my group have turn out to be comfy utilizing it as a main manner of connecting, particularly for exterior shoppers who do not all the time 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 shoppers and stakeholders. 

What I dislike about Zoom Office

• Whereas Zoom has no main downsides, I really feel that generally audio goes out within the conferences, which has additionally been echoed in G2 opinions.
• One other challenge I bumped into was microphone connectivity, which, as talked about within the G2 opinions, brought on me to drop just a few calls alongside the way in which.

What do G2 customers dislike about Zoom Office:

“I do not like that generally it makes your necessary improve. Normally, it really works fantastic, however proper earlier than you might be about to hop on a name or Zoom, it upgrades, and it could take just a few seconds. It is irritating if it occurs if you end up working late to a gathering.”

– Zoom Office Overview, Alex R.

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

Once I first began searching for a dependable VoIP answer, I had no concept what number of choices have been on the market. Nonetheless, after doing my very own comparisons, I landed on Nextiva, which has been one of the best determination 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 degree in comparison with what I would skilled with earlier suppliers. It made our day-to-day operations, from calls to shopper coordination, really feel extra skilled and fewer traumatic.

I instantly observed how strong and dependable their VoIP platform is. It presents 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 fully reworked how we work together with our shoppers. Options like detailed name analytics and clever routing helped us reply shortly and keep on high of all the pieces.

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

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

Total, Nextiva is a robust and dependable VoIP answer that optimizes outbound and inbound calling and presents detailed calling reviews. This enables 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 instances, after which, when my name was picked up by a human, I dropped once more with no follow-up name to reconnect, as additionally echoed in G2 opinions.
• One other gripe I had was that the cellphone replace brought on the app to have many points over a time frame, as additionally mentioned in G2 opinions.

What do G2 customers dislike about Nextiva:

“The automated cellphone system dropped my name so many instances, after which when my name was picked up by a human, I used to be dropped once more with no follow-up cellphone name to reconnect. That was a degree of competition. The supply of customer support and tech assist through cellphone might be higher.”

– Nextiva Overview, Rahab B.

OpenPhone is a non-public, dependable VoIP supplier that integrates calls, texts, and messages into one app to higher serve customers. It additionally presents 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 properly on the desktop because it did on cell, which is big for me as a result of I’m bouncing between units all day. I can add shopper data, set customized voicemail greetings, and seamlessly swap between completely different numbers within the app.

It additionally consists of team-wide shared inboxes, so irrespective of who responds, the entire workforce 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 persistently stable, and I really like the way it lets me report calls, which is ideal once I’m juggling a number of conversations and need to circle again later. 

One in every of my favourite options is the AI-powered name summaries. They save me from typing out notes and assist me keep on high of follow-ups. I’ve additionally began leaning extra towards integration. OpenPhone integrates with Slack, HubSpot, and even Zapier, which opens infinite workflow automation prospects. For example, I’ve arrange automated notifications for missed calls or voicemails in Slack, which helps our groups collect knowledge even when we’re not 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 embody integrations, auto-replies, snippets, analytics, and multi-number assist.

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

One in every of my teammates talked about that the administration monitoring options might 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 case you rely closely on worldwide texting or receiving messages from banks or monetary providers (like PayPal), there is likely to be limitations, doubtless because of how OpenPhone handles shortcodes and provider partnerships.

That being mentioned, OpenPhone is without doubt one of the most agile and dependable options to supply a high-speed name community, retailer inbound knowledge, and route energetic calls to the fitting individual whereas offering customer-centric options to a enterprise. 

What I dislike about OpenPhone

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

What do G2 customers dislike about OpenPhone

“We like nearly all the pieces 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 having the ability to deal with Spanish. The English, although, was nice. Spanish gave us snigger however did not sound very skilled.”

– OpenPhone Overview, Vera B.

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

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

The entire course of, together with quantity provisioning and person 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 sometimes struggles below poor web situations. On 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, cell 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 traces, and even location-based routing. In case you are in a bigger group, you’ll be able to profit so much from this flexibility. 

There’s additionally quite a lot of consideration to the cell 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) remove 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 present a part of the workflow.

Nonetheless, this platform additionally has just a few 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 easy, lots 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 aspect, significantly for small companies and startups. You get what you pay for, but it surely’s undoubtedly an funding, particularly for companies with a good finances.

Regardless that the free model is beneficiant with options like 50-minute conferences and primary calling, this does not work for established companies. You would possibly need to take a look at the paid tiers in case you are scaling your small business. The enterprise tier bundle presents 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 presents a glitch-free calling expertise, there have been just a few instances that I couldn’t register for an hour or extra of Webex Cloud, as additionally mirrored in G2 opinions.
• I really feel that the admin portal can use extra customization choices to set person permissions or configure name circulation guidelines, as highlighted in G2 opinions.

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, you should deploy an on-site machine that may deal with the site 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 sort of site visitors.”

– Webex Calling Overview, Gerardo H.

RingEx is a sophisticated cellphone and name analytics answer 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 just superior. It’s not just a few gimmick; it helps with documenting calls, summarizing voicemails, and nudging me when I’m drifting from the decision script. It is nearly as if I’ve a quiet and environment friendly name assistant within the background.

I additionally need to spotlight the flexibility RingEx presents. When you set the VoIP, you’ll be able to make or obtain calls out of your desk cellphone, cell app, or perhaps a softphone in your laptop computer and swap between them.

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

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

The platform additionally has just a few drawbacks. Whereas the AI options are useful, they’ll generally really feel slightly limiting. Name transcriptions generally misread completely different name accents or jargon. Additionally, voicemail delays could be annoying. Generally, I’m ready manner too lengthy for a voice message to look within the system.

Reporting is one other space the place the device can enhance. Some customers on my workforce have flagged that the reviews aren’t all the time correct or updated, which might throw off our weekly opinions.

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 generally feels permission-heavy. I can not all the time 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 case you’re working the free model, you would possibly really feel a bit restricted.

Total, RingEx presents superior calling options, voicemail to e mail, name recording, and superior name analytics to set strong calling protocols and preserve a easy contact middle infrastructure community. 

What I dislike about RingEx

• Though RingEx presents a robust platform, I felt that the cell app was a bit gradual and generally froze once I tried to enter contact data. G2 opinions have highlighted this.
• It took me a while to determine tips on how to get began with the platform and customise all the pieces the way in which I wished it. G2 opinions have highlighted this. 

What do G2 customers dislike about RingEx

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

– RingEx Overview, BP R. 

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

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

One in every of my favourite options is the Dial Plan Editor. It offers 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 presents the choices.

I additionally cherished the inclusion of the cell app. I can seamlessly swap from my desk cellphone to my cellular phone, which is superior for days when I’m bouncing between conferences or working remotely. Plus, the decision high quality has been stable for probably the most half. There have been no cases 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 admire how user-friendly all the pieces is. A number of of my colleagues aren’t that tech-savvy, however even they’d no drawback adapting to it.

Additionally, the customer support was nice and responsive. I’ve had some genuinely useful interactions with assist once I bumped into points. But it surely was slightly hit-and-miss. Generally, 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 notice till I bought deeper into the platform was how completely different the expertise is relying on the plan tier. I began with a extra primary setup, however as soon as I upgraded to the Customary plan, the vary of options actually opened up. The bottom tier offers 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 workforce.

Additional, the desktop app is not good. I’ve had points with it crashing or freezing randomly, and logging in by means of the online portal has failed just a few instances. And whereas the cellphone system {hardware} has nice assist, updates can generally trigger minor disruptions.

Total, GoTo Join is a sturdy 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:

• Generally, the software program is slightly glitchy. That resulted in missed cellphone calls on my finish. The identical has been mirrored in G2 opinions as properly.
• The desktop utility was a bit gradual. I needed to shut it fully to refresh the info I used to be seeing, or it might present folks within the queue who weren’t. The identical has been highlighted in G2 opinions. 

What do G2 customers dislike about GoTo Join:

“The one dislike is prospects generally say the decision in dropping out and in generally. Getting solely a part of the dialog could be irritating at instances. Presumably because of being an web cellphone service. This could occur on my cell or desktop cellphone, if this might be mounted then the service is ideal.”

– GoTo Join Overview, Keith F.

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

I have been utilizing Dialpad Join for some time now, and I’ve to say, it nails quite a lot of what I search for in a contemporary enterprise cellphone system. The very first thing that actually stood out to me was the cross-platform expertise throughout units. Whether or not I’m utilizing the cell app, the desktop app, and even the desk cellphone, all the pieces 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 if you end up 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 supplied AI-powered name options like real-time transcription and voicemail-to-text. I do not all the time 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 Customary and Professional plans, and the distinction between them is fairly clear. The usual plan is stable in case you are working a small workforce and simply want primary calling, messaging, and integrations like Google Workspace or Microsoft 365.

Nonetheless, the Professional plan presents options like CRM integrations (Salesforce, HubSpot or Zoho), native quantity assist in over 70 nations, and superior analytics dashboards.