The 10 best VoIP Solutions for Salesforce in 2025

These are the 10 best VoIP solutions for Salesforce in 2025:

• Harmonix AI
  
  
• RingCentral
  
  
• Aircall
  
  
• Vonage
  
  
• Nextiva
  
  
• GoTo Connect
  
  
• Ooma Office Pro Plus
  
  
• net2phone
  
  
• Placetel
  
  
• OpenPhone
  
  

Companies are increasingly looking for speed, efficiency, and flexibility in customer communication. That is why having the best VoIP solutions for Salesforce has become a competitive advantage.

These tools allow businesses to unify channels, optimize processes, and boost sales team productivity.

For a long time, companies worked with a single medium: email, phone calls, or even WhatsApp separately.

The result was always the same: scattered information, ineffective follow-ups, and less ability to make strategic decisions.

Today the key is omnichannel, which centralizes all communication and ensures that every customer interaction is backed by clear data, complete history, and stronger analysis capability.

Thanks to this, teams can respond faster, have real control over the sales process, and enhance the customer experience.

In the following sections we will see in detail the main advantages, key features, and how these solutions can boost results for any business using Salesforce.

The 10 best VoIP Solutions for Salesforce

1. Harmonix AI

Harmonix AI is not a CRM with AI, but an intelligent layer that installs on top of any CRM or ERP, such as Salesforce, Dynamics, or SAP, without replacing them or requiring costly integration projects.

Its goal is clear: digitize all communication channels, centralize them in one place, and enhance them with generative AI to achieve more productive, faster, and effective teams.

Traditionally, companies relied on a single channel: email, calls, or WhatsApp separately, which caused loss of information and slow processes.

With Harmonix, true omnichannel is achieved: calls, emails, WhatsApp, LinkedIn, video calls, or web chats are unified inside the CRM, with automatic recording and smart analysis of each interaction.

Harmonix allows users to save up to 8 hours weekly in administrative tasks thanks to automated reporting and automatic record creation.

It also provides call summaries, next-step suggestions, AI-optimized follow-up emails, and smart agents that manage follow-ups or queries autonomously.

At the executive level, Harmonix transforms management: it offers more accurate sales forecasts, automatic quality control over conversations, and market intelligence that identifies competitors, trends, and common objections in real time.

Key Benefits of Harmonix AI

• Full omnichannel: calls, WhatsApp, emails, LinkedIn, video calls, and chats in one place.
  
  
• Complete automation: records, summaries, and CRM updates without manual effort.
  
  
• Higher productivity: up to 40–60% more effective time in sales and customer service.
  
  
• Commercial effectiveness: more meetings scheduled and up to 22% increase in sales within months of use.
  
  
• Coaching and quality: conversation intelligence to train the team in real time and ensure compliance.
  
  
• Simple installation: integrates into the current CRM without replacing it, avoiding complexity and unnecessary costs.
  
  

2. RingCentral

RingCentral is one of the most complete and popular communication platforms.

Its integration with Salesforce allows users to make calls with one click, automatically log all information, and access full customer history without leaving the CRM.

Thanks to its connection with Microsoft AI and Salesforce Generative AI, RingCentral provides real-time transcriptions, smart suggestions for next steps, call quality analysis, and live monitoring tools for managers.

This makes it a powerful option for companies seeking efficiency and control in communication.

3. Aircall

Aircall is especially popular in sales and support teams thanks to its simplicity and productivity focus.

With its native integration in Salesforce, inbound and outbound calls are automatically recorded, including duration, recordings, and complete context.

Its CTI widget allows agents to work without leaving Salesforce, automating tasks, managing customer lists with an automatic call dialer, and feeding performance reports.

In addition, Aircall stands out as a flexible and scalable solution, ideal for fast-growing teams.

4. Vonage

Vonage excels with a strong focus on omnichannel.

From Salesforce, users can manage voice, SMS, WhatsApp, RCS, and chat in a single panel, ensuring a smooth and centralized experience.

The platform guarantees 99.999% uptime, provides smart call routing, real-time transcription, and advanced dashboards to monitor agent and team activity.

Vonage is one of the strongest options for companies prioritizing reliability and global scalability.

5. Nextiva

Nextiva brings omnichannel directly into Salesforce, allowing users to make and receive calls, send SMS, generate automatic transcripts, and log every interaction within the CRM.

One of its most useful features is screen pop: when a call comes in, the customer record instantly appears in Salesforce, saving time and improving personalization.

Additionally, thanks to its natural language AI, agents can create tasks or notes simply by saying phrases like “tomorrow” or “next week”, making workflows much more intuitive and fast.

6. GoTo Connect

GoTo Connect is a cloud telephony solution that combines voice, video, SMS, and conferencing in one system.

Its Salesforce integration allows managing calls and messages directly inside the CRM, along with advanced call routing and recordings accessible from the customer record.

Users value its flexibility for international calls, high stability, and ability to centralize communications in distributed teams.

7. Ooma Office Pro Plus

Ooma Office Pro Plus is designed for SMEs and growing businesses looking for a VoIP solution with excellent value for money.

Within Salesforce, it allows managing calls, voicemails, virtual fax, and automatic integrations, all from the same platform.

Its strength lies in ease of use and simple installation, making it an ideal choice for companies that do not want complex systems but do need basic omnichannel functionalities to improve customer service.

8. net2phone

net2phone provides a full UCaaS (Unified Communications as a Service) system, including voice, video, chat, and omnichannel support.

Its Salesforce integration enables contact synchronization, automatic call logging, and real-time performance analytics.

One of its biggest advantages is that it combines internal collaboration with external customer service, helping medium and large teams manage everything from one single system.

9. Placetel

Placetel, part of the Cisco group, is a cloud VoIP solution that stands out for its more than 150 integrated features.

With Salesforce, it allows users to manage video conferences, telephony, chat, and collaboration in one environment.

Its greatest strength is scalability: it is ideal for both SMEs and large corporations, since its cloud infrastructure supports from just a few users to thousands.

Moreover, Its European focus makes it a popular choice among companies that prioritize security and regulatory compliance, including GDPR.

10. OpenPhone

OpenPhone is a modern VoIP solution, designed especially for startups and growing teams.

Its Salesforce integration automatically logs calls, texts, and voicemails, linking them to each client or contact in the CRM.

It stands out for its ease of use, the ability to share numbers across teams, and its real-time collaboration focus.

OpenPhone is ideal for companies looking for an agile, affordable, and flexible option, without losing the advantage of omnichannel.

What Is a VoIP Solution Integrated into Salesforce?

A VoIP solution integrated into Salesforce allows company calls and communications to be managed directly inside the CRM.

It is no longer necessary to use physical phones or manually log each interaction: everything is automated, centralized, and available in real time.

How It Works Inside a CRM

Instead of switching between different applications, VoIP connects to Salesforce so the team can make and receive calls, send emails, use WhatsApp, or even LinkedIn without leaving the CRM.

Every interaction is recorded automatically, feeding the database and improving decision-making.

Differences Between Traditional Telephony and VoIP in Salesforce

With traditional telephony, calls take place outside the CRM and the agent must manually note what happened, causing errors and data loss.

In contrast, with VoIP integrated in Salesforce, everything is logged instantly, automatic AI summaries can be added, and other communication channels are also connected.

This creates a truly omnichannel experience.

Why Is It Key to Use VoIP with Salesforce?

VoIP in Salesforce allows centralizing all customer information in a single system, giving each agent complete context before talking to a customer.

This speeds up processes, improves service quality, and enables more effective strategic decisions.

Another key benefit is speed: agents handle more calls, respond to more messages, and spend less time on manual tasks.

Thus, the team works with greater fluidity and productivity.

Example: Harmonix AI as an Advanced Solution

Harmonix AI is an example of how a VoIP solution can go much further.

It is not a CRM with AI, but a layer that installs on top of any existing CRM (Salesforce, Dynamics, SAP, etc.), without replacing it, which makes it very practical and easy to implement.

Unlike other tools, Harmonix does not limit itself to VoIP calls: it integrates WhatsApp, email, LinkedIn, video calls, and web chat in one place, offering true omnichannel.

This eliminates data fragmentation and multiplies efficiency in customer management.

With Harmonix, users become much more productive and faster, because all communications are automatically recorded, smart summaries are generated, next steps are suggested, and repetitive tasks are automated.

7 Key Benefits of Integrating VoIP into Salesforce

1. Increased Team Productivity

With VoIP integrated into Salesforce, calls are automatically logged into the CRM. This eliminates the need for agents to write long notes or update fields manually.

Example: a salesperson can move from spending minutes on administrative tasks to dedicating that time to contacting new clients, increasing both productivity and work speed.

2. Omnichannel with Harmonix

Harmonix AI takes integration to the next level by offering true omnichannel: calls, WhatsApp, email, LinkedIn, and video calls, all in one place.

This provides the user with complete context for each conversation, ensuring that every interaction is supported by the customer’s full history. The result is more effective and strategic work.

3. Faster Response to Customers and Leads

By integrating VoIP into Salesforce, teams can respond within minutes to a lead entering through a call or message.

That speed translates into more conversions and more satisfied customers.

Immediate availability and CRM centralization eliminate delays that previously cost sales opportunities.

4. Reduction of Manual Errors

Automating the logging of calls, emails, and messages prevents the loss of key information.

Every interaction is stored precisely, eliminating human errors and ensuring total traceability.

This is especially useful in large teams, where data consistency makes a big difference.

5. AI-Based Insights

With advanced solutions like Harmonix, interactions are not just recorded: AI analyzes conversations, extracts patterns, and generates strategic conclusions.

Example: the system can detect which customers show greater purchase intent, prioritizing them so the team focuses its energy where sales are more likely to close.

6. Frictionless Scalability

VoIP integrated into Salesforce is useful for both growing startups and large sales teams.

Its cloud-based structure allows it to adapt easily to user volume without major technical changes.

This ensures the tool evolves in step with the business.

7. Better Customer Experience

A customer perceives value when they receive fast, personalized, and professional service.

With VoIP in Salesforce, each agent has immediate access to full history and can provide a consistent experience across any channel.

The result: more satisfied customers and stronger business relationships.

Challenges and Risks of Using VoIP with Salesforce

Possible Integration Problems Without the Right Tool

Integrating VoIP into Salesforce without the right technology can create friction.

Many companies end up with incomplete integrations that fail to log calls properly or require manual processes.

The result is time loss and inconsistent data.

Another common risk is channel fragmentation. Traditionally, teams used a single communication medium (email, calls, or WhatsApp).

When each channel is isolated, the full context of conversations is lost, making strategic decision-making difficult.

Risk of Data Loss Without Security

VoIP calls and customer messages contain sensitive information, making strong data protection protocols essential. 

Without strong security protocols, the risk of data leaks or regulatory non-compliance is high.

Additionally, many basic VoIP systems do not provide end-to-end encryption or store data in a way that guarantees traceability and legal compliance.

Expert Opinions and Market Cases

CRM and telephony specialists agree that the key to VoIP is not just making calls from Salesforce, but having a complete and secure integration that transforms those interactions into business intelligence.

In the market, clear results have been observed: companies adopting VoIP solutions integrated with Salesforce have managed to reduce response times by more than 40% and increase lead conversion rates by more than 20%.

The common denominator: omnichannel, automation, and smart data analysis, which turn each interaction into a competitive advantage.

How to Start Integrating VoIP into Salesforce

First Steps: Choosing the Right Solution

The first step to integrate VoIP into Salesforce is to define the team’s needs.

A call center with hundreds of agents is not the same as a startup with a small sales team.

Therefore, it is important to evaluate options that guarantee omnichannel, ease of integration, and data security.

The tool must also be scalable. A poor choice may later force a system migration, generating extra costs and time loss.

Initial Integration with Harmonix

Harmonix AI stands out because it does not replace your CRM, but installs on top of it. This makes it a practical, fast, and frictionless option.

Traditionally, companies worked with a single channel: email, calls, or WhatsApp.

With Harmonix, these channels are integrated into one place, giving the team more data and a much more complete strategic context for decision-making.

The initial setup is simple: just connect the communication channels and allow AI to start automatically logging calls, emails, and messages, eliminating manual tasks and making users more productive and faster.

Practical Tips to Make the Most of the Tool

• Train the team to take advantage of automation and analytics features.
  
  
• Centralize all channels from the beginning to avoid data duplication.
  
  
• Use AI functions for automatic follow-up, so that no lead is left unattended.
  
  
• Define clear metrics: measure improvement in response times, conversion rate, and customer satisfaction.

Additionally, teams can improve sales prospecting by using Salesforce analytics to identify the most promising leads and optimize outreach strategies.

Why Harmonix Is the Best Option for VoIP in Salesforce

What sets Harmonix apart from other solutions is that it does not just handle VoIP calls: it offers total omnichannel with WhatsApp, emails, LinkedIn, and virtual meetings.

This turns every interaction into valuable, actionable information.

In addition, Harmonix is not purely a CRM with AI. It is an intelligent layer that enhances the existing CRM, providing advanced conversation analysis, opportunity detection, and follow-up automation.

Practical case: companies that implemented Harmonix saw a 22% increase in sales in just three months, along with a remarkable improvement in customer satisfaction (4.8/5) thanks to faster responses and continuous personalization.

Frequently Asked Questions (FAQs)

What Is a VoIP Solution for Salesforce?

A VoIP solution for Salesforce allows calls and other communication channels to be managed directly from the CRM.

This means each interaction is automatically recorded, and teams work with a centralized history without switching between applications.

What Are the Advantages Compared to Traditional Telephony?

Traditional telephony requires manual data entry and does not connect with the CRM.

With integrated VoIP, all interactions are logged instantly, automatic summaries are generated, and a complete customer context is obtained.

This results in higher productivity and fewer human errors.

Can It Also Be Integrated with WhatsApp and Email?

Yes. In fact, the key today is omnichannel.

Modern solutions like Harmonix AI not only offer VoIP calls, but also WhatsApp, emails, LinkedIn, and video calls in one environment.

Traditionally, companies used a single channel, but now integration allows all data to be unified to make strategic decisions more effectively.

What Role Does Artificial Intelligence Play in These Integrations?

Artificial intelligence transforms the way communications are used within Salesforce.

In the case of Harmonix, AI analyzes conversations, generates suggested next steps, automates follow-ups, and prioritizes clients with higher purchase intent.

This makes teams work faster, smarter, and more effectively.

Is It Expensive to Implement VoIP in Salesforce?

The cost depends on the chosen solution, but in general, integrated VoIP is more cost-effective than traditional telephony.

Tools like Harmonix avoid extra expenses because they install on top of the existing CRM, without replacing it or requiring complex migration projects.

In practice, the return on investment is usually high: companies report more sales, shorter response times, and better customer experience thanks to omnichannel and automation.