You want a clear opinion on Five9 for your business telephony. We analyze what Five9 does well (cloud contact center, AI, CRM integrations) and what can go wrong in use.
Then we compare them with others, including Kavkom: pricing, features, reliability, support. Simple objective: to help you decide.
Five9 is a cloud contact center platform designed for the support and sales teams of medium-sized and large companies. Its positioning emphasizes 99.99% reliability, omnichannel (voice, email, chat, SMS, social networks) and AI tools for conversation transcription and analysis. In our experience, Kavkom is aimed more at SMEs and multi-site organizations looking for fast, simple deployment and local support.
Functionally, Five9 offers ACD, queuing, real-time supervision, predictive/progressive/preview dialers, and major integrations (Salesforce, Dynamics, Zendesk). Kavkom also covers enterprise VoIP, cloud PBX with IVR, predictive dialer, and ready-to-use integrations (Zoho, HubSpot, Salesforce, Pipedrive, Zendesk), all in 100% cloud.
Network and security: Five9 operates on a multi-operator infrastructure with data centers in North America, Europe and Asia-Pacific, TLS/SRTP encryption and data residency options. Kavkom also encrypts calls, complies with RGPD and relies on a highly available architecture.
International coverage and usage: Five9 provides numbers in 100+ countries100+ countries. Kavkom offers geographic numbers in 50+ countries and unlimited packages targeting France, USA, Canada.
Rates
Five9 customer reviews: intuitive interface and solid integrations, but variable feedback on support, billing and a few bugs/cuts. For those looking for greater flexibility or more human support, solutions like Kavkom are clearly worth considering.
Five9’s easy-to-use interface, seamless CRM integrations and effective predictive dialers make it a real winner. Omnichannel and AI help you to manage your business, with 99.99% reliability overall.
On the other hand, some feedback mentions bugs, disconnections and unclear billing. Unclear rates, often based on quotes, complicate the SME budget. Some teams, like Kavkom, prefer greater flexibility.
Here’s the summary in table form.
✅ Complete omnichannel (voice, email, chat, SMS, social networks)
✅ Out-of-the-box major CRM integrations (Salesforce, Dynamics, Zendesk)
✅ Efficient advanced dialers (predictive, progressive, preview)
✅ 99.99% SLA and multi-region redundant infrastructure
✅ Numbers available in 100+ countries for global operations
❌ Prices not easy to read and often based on quotations (Kavkom advertises prices from €10/30/60)
❌ Bugs and outages reported by production users
❌ Support perceived as uneven or slow according to feedback
❌ Invoicing deemed confusing by some customers
❌ Enterprise complexity that can oversize an SME (Kavkom aims for simpler deployment)
❌ Public status page absent, limited visibility on incidents
❌ Little indication of assisted migration and training included
Kavkom addresses a number of irritants noted at Five9: prices are advertised from €10/30/60, with no commitment and pro rata billing for a predictable budget. Reactive French-speaking support, rapid deployment and a simple interface keep complexity to a minimum. The resilient cloud infrastructure and native CRM integrations stabilize your operations, without being cumbersome for an SME.
✅ Public and readable rates, budget under control
✅ No commitment, pro rata billing
✅ Reactive human francophone support
✅ Resilient cloud infrastructure, HD voice
✅ Configuration support and training courses
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If you run a call center or a multi-site team, Five9 may be just what you need to manage calls, CRM integrations and service quality. Before you decide, here’s a full rundown of what users are saying in their recent reviews. We’ve sifted through the reviews published on Google, Trustpilot and Capterra.
Opinions are divided, with a notable positive base. Out of 30 reviews analyzed, the trend shows rather favorable feedback on ergonomics, CRM integration and call quality deemed stable by several users. Customers appreciate a platform perceived as intuitive and easy to use, with functionalities that help them in their day-to-day customer relations.
On the other hand, the most common limitations are occasional or recurring bugs, outages, and sometimes slow support with exchanges deemed inefficient by some. Billing is also cited as a source of confusion by some users.
“Installation was quick and the interface very user-friendly, making it easy to get to grips with and efficient in day-to-day operations. “Google
“Slow customer support and frequent bugs.” – Trustpilot
Operationally, this means that your teams can get up and running quickly and work in a simple environment, but you need to provide incident tolerance and a clear internal process for escalating when a bug blocks production. For a growing team, the learning curve seems to be smooth, but network and application stability becomes a point of vigilance if your business cannot withstand even brief downtime.
Opinions are divided. Some talk of excellent value for money, others of a high price tag that may hold back SMEs. The reviews do not detail plans, volume discounts or the policy of adding and reducing users along the way. No figures are quoted in the reviews used here, so no conversion into euros is possible.
“The software is powerful but the price is high and may be an obstacle for some SMEs.” – Capterra
“The value for money is excellent, especially with the stability of calls and the many features on offer.” – Capterra
In concrete terms, expect an internal debate between finance and operations. If your priority is call stability and rich functional coverage, some feedback validates the investment. If your objective is strict budgetary control, you’ll need to check tariff lines and invoicing conditions carefully, as some reviews mention invoicing that is considered confusing. In the absence of public details in these reviews on installation costs, add-ons or penalties, the best thing to do is to ask for a very precise written quotation and examples of scalability with variable headcount.
Users point to an intuitive platform, advanced features that are useful on a daily basis, and appreciated CRM integrations. Several reviews also highlight stable call quality and rapid deployment. For a manager, this translates into rapid agent familiarization, less friction during onboarding, and better-tooled customer paths thanks to CRM integration.
“Five9 offers a complete tool with excellent customer follow-up and seamless integration with our CRM. Call quality is polished and stable.” – Capterra
“I love how easy it is to change any information, the platform is incredibly intuitive. Its features greatly enhance the customer experience.” – Review summary
The functional irritants cited revolve around one-off bugs which, when they occur, impact the work of teams. For productivity, this means providing workaround procedures and an incident log to document these cases and speed up support. The reviews don’t mention specific modules such as transcription, advanced analytics or granular recording, so it’s impossible to conclude on these points.
The reviews analyzed do not directly mention encryption, MFA (multi-factor authentication) or SSO. The word security does not appear in any of the testimonials. On the other hand, some comments emphasize the outages and instability experienced by some, which affect service continuity, and therefore indirectly the resilience of the infrastructure and network on the customer side.
“The platform is prone to frequent outages that hinder effective communication with our customers.” – Google
In practice, to reduce operational risk, teams who depend on the telephone to sell or support customers will need to plan a simple fallback plan when an outage occurs, and test network quality at critical sites in advance. The reviews give no indication of any redundancy mechanisms provided by the solution, nor of any formalized security policies.
The feedbacks consulted do not detail dashboards, exports, APIs or real-time management. We know that the platform is described as complete by some, and that it supports the customer experience, but not a single review specifies the depth of statistics, the ease of CSV export or the existence of manager alerts. The lack of public information in these reviews means only one thing for you: test demo reporting with your own business KPIs before committing.
“The platform is good overall with useful features, however occasional bugs can occur.” – Trustpilot
For a team manager, the main risk here is to discover too late that the available indicators don’t fit in with your management rituals. It is therefore wise to validate the presence of key metrics, such as contact rate, average processing time, waiting time, and real-time visibility for supervision.
None of the reviews analyzed mentioned country coverage, types of numbers offered, selection by city, or ease of portability. Nor is there any feedback on coverage gaps. Without data from the testimonials, it is not possible to draw any conclusions on this point.
“Quick installation and simple interface…” – Google
If local presence by geographic number is critical to your business, plan a written availability check by country and city, and a porting test on a reduced batch before a massive switchover. The notices here do not give any indication one way or the other.
Feedback varies widely. Some users speak of responsive, reliable support, while others find it hard to reach and slow to resolve issues, particularly when bugs impact production. Comments also point to billing that is perceived as confusing, with support deemed inefficient in these matters.
“Five9 is a feature-rich platform with reliable and responsive customer support.” – Trustpilot
“Support is hard to reach and bugs in the application negatively impact our work.” – Trustpilot
“Unclear billing and support unable to resolve our issues quickly.” – Trustpilot
Operationally, if you have teams responding to customers in real time, the tricky thing is to align criticality and response times. In the event of an incident, a long delay can result in unprocessed queues, missed appointments, and stress for the agents. The best practice here, suggested by related experience, is to require a clear escalation process and to test support under real conditions during the trial phase, including on billing issues if this is a risk for you.
Reviews cite CRM integrations as being fluid and useful. This is a recurring strong point, with a direct impact on your sales and customer service flows. The concrete benefit, according to the testimonials, is a continuity of information between calls and the CRM, which helps customer follow-up and limits double entries. The reviews do not list specific tools or access limits per plan.
“Excellent customer care and seamless integration with our CRM.” – Capterra
For a manager, the lesson is simple and practical: if your core process lives in CRM, the feedback suggests time savings on a daily basis and less friction for agents. Validate upstream the key scenarios that are important to you, such as opening a record when you go off-hook, automatic writing of call logs, or associating recordings with contacts.
Five9 is ideal if you run a mid/enterprise cloud contact center with omnichannel needs + CRM integrations, predictive dialers and international operations. The platform is robust (SLA 99.99%), deployed in multi-regions and offers numbers in 100+ countries, with AI for transcription and analytics.
On the other hand, if you’re a small or medium-sized business requiring predictable pricing, rapid deployment and close support, the limitations we’ve observed (often quoted prices, uneven support, bugs/outages, billing considered confusing, no public status page) may weigh heavily. The same is true if you refuse to accept enterprise complexity.
In these cases, Kavkom ticks the key boxes: advertised prices from €10/30/60, with no commitment and prorated, responsive French-speaking support, simple interface, rapid deployment, resilient cloud infrastructure and native CRM integrations (Zoho, HubSpot, Salesforce, Pipedrive, Zendesk). Particularly suited to SMEs and multi-site organizations.
Find out why over 8,000 companies work with Kavkom for their corporate telephony.
4.7 on Capterra
With Kavkom, I was able to easily resolve the issue of communication costs to my regular customers. My agents, too, were no longer restricted in their mobility, because even when on the move, communications are managed.
Ben Cauchois
VP Sales & Operations @ SEIZA
We’ve increased our targets by 10% thanks to the information we’ve gained from call identification and analysis provided by Kavkom’s telephony solution.
Dov Dahan
CEO @ Formideo
We evaluated several service providers, and Kavkom emerged as the only option that allowed us to tailor our customer service requirements to our unique business practices.
Pierre Roche
Managing Partner
at Groupe OREL
The integration of Kavkom’s virtual number service with voicemail has considerably facilitated our process of collecting visitor testimonials. We have been able to gather valuable feedback that helps us to continually improve our services.
Hélène Lafont-Couturier
Visitor Relations Manager
Musée des Confluences
