Most lists of "customer engagement platforms" are written for email marketers. They rank tools by how well they send newsletters, push notifications and abandoned-cart reminders. That is useful if you run lifecycle campaigns for an online store.
It is far less useful if you run a sales floor or a support queue.
For those teams, engagement happens in real conversations. A prospect calls back about a quote. A customer texts about a late order at 11 pm. A WhatsApp message asks whether the demo is still on for Thursday. If nobody answers, or the answer lives in a tool that doesn't talk to your CRM, the customer leaves.
This guide is built for that reality. It compares 10 customer engagement platforms on the things sales and support leaders actually ask about:
- Which channels each tool covers, including phone, SMS and WhatsApp
- What the AI agents can do on their own, and how they are billed
- How deeply each tool connects to the CRM and helpdesk you already use
- What a 10-person team will really pay per month
- How well each tool works for remote and hybrid teams
Short on time? Aircall is our top pick for sales and support teams. It pairs a full cloud phone system with AI Voice Agents and AI Messaging Agents, connects to 260+ tools, and starts at $30 per license per month. The full breakdown is below, and you can browse more sales and support software in the Grovers AI tools directory.
What is a customer engagement platform?
A customer engagement platform (CEP) is software that lets a business talk to customers across channels and remember every conversation. It pulls calls, texts, chats, emails and messages into one place, links them to the customer record, and helps the team (or an AI agent) reply fast and in context.
The category is broad, and that is why so many "best of" lists disagree. In 2026 the tools fall into four groups:
| Type | What it does best | Examples in this list |
|---|---|---|
| Conversational communication platforms | Live calls, SMS, WhatsApp and AI agents for sales and support | Aircall, Dialpad, RingCentral |
| Helpdesk and service platforms | Tickets, chat, email and self-service knowledge bases | Zendesk, Intercom, HubSpot Service Hub |
| Contact center platforms (CCaaS) | High-volume queues, workforce management, complex routing | Talkdesk, Twilio Flex, Salesforce Service Cloud |
| Marketing engagement platforms | Lifecycle campaigns over email, push and in-app | Braze |
Sales and support teams usually need the first group at the core, plus a CRM or helpdesk next to it. A marketing CEP alone won't answer the phone.
Customer engagement platform vs CRM vs CDP
These three get mixed up all the time. Here is the plain difference:
| Tool | Main job | What it can't do alone |
|---|---|---|
| CRM | Stores contacts, deals and history | Hold live conversations across channels |
| CDP | Merges customer data from many sources into one profile | Talk to customers |
| Customer engagement platform | Runs the conversations and logs them back to the CRM | Replace your system of record |
The best setups use the engagement platform as the conversation layer and the CRM as the memory. That is why integration depth matters so much in the reviews below.
Why it matters more in 2026
The market is growing fast. Allied Market Research projects customer engagement solutions will reach $48.4 billion by 2031. Three shifts make this purchase more important than it was even two years ago:
- AI agents now handle real work. They answer calls, qualify leads and book meetings without a human. The question is no longer "does it have AI?" but "what can the AI finish on its own?"
- Customers move between channels. A conversation can start as a missed call, continue on WhatsApp and end on a sales call. Tools that split these into separate inboxes lose context.
- Teams are spread out. Remote and hybrid reps need the same phone number, the same queue and the same CRM view whether they work from the office, home or a phone.
Best customer engagement platforms compared
Aircall is the only tool here that gives you a native phone system, AI agents for calls and messages, and 260+ integrations on its entry plan. The others either charge extra for one of those pieces or leave them out.
| Platform | Best for | Starting price (annual billing) | Native voice | SMS / WhatsApp | AI agent | Pricing model for AI |
|---|---|---|---|---|---|---|
| Aircall | Sales and support teams that live on calls and messages | $30/license/mo (3 licenses min.) | Yes | Yes / Yes | AI Voice Agents + AI Messaging Agents | 50 AI Voice Agent min/mo included, then usage |
| HubSpot Service Hub | Teams already running HubSpot CRM | $7–$20/seat/mo (Starter) | Basic calling | Check plan / Up to 1,000 msgs/mo | Breeze Customer Agent | HubSpot credits |
| Zendesk | Ticket-heavy support teams | $55/agent/mo (Suite Team) | Yes (add-on seats) | Yes / Yes | Zendesk AI agents | Per automated resolution |
| Intercom | Chat-first SaaS support | $29/seat/mo + Fin usage | Pay-as-you-go | Yes / Yes | Fin AI Agent | $0.99 per outcome ($1.99 for voice) |
| Twilio Flex | Companies with developers who want to build their own | $35 per active user/mo + usage | Yes | Yes / Yes | Build your own on Twilio | Per minute and per message |
| Dialpad | Budget-aware teams that want built-in call AI | $15/user/mo (Connect Standard) | Yes | Yes / Check plan | Dialpad AI Agents | AI Agent credits |
| RingCentral | Companies replacing an office phone system | $20/user/mo (RingEX Core) | Yes | 25 SMS/user/mo / Check plan | AI Receptionist | Paid add-on |
| Talkdesk | Large contact centers | $85/user/mo (Digital) or $105 (Voice) | Yes | Yes / Yes | Talkdesk CXA agents | Add-on, sales quote |
| Salesforce Service Cloud | Enterprises standardized on Salesforce | $25/user/mo (Starter Suite) | Via Service Cloud Voice | Yes / Yes | Agentforce | Credits, sales quote |
| Braze | B2C marketing teams | Quote only | No | Yes / Yes | BrazeAI | Action credits, sales quote |
What a 10-person team really pays
List prices hide the plan you actually need. A sales or support team needs calling and a CRM connection, so the table below uses the cheapest plan that includes both.
| Platform | Plan needed for calls + CRM sync | Monthly cost for 10 users | Not included in that price |
|---|---|---|---|
| Aircall | Essentials | $300 | AI Voice Agent minutes over 50/mo |
| Dialpad | Connect Pro (CRM integrations start here) | $250 | AI Agent credits |
| RingCentral | RingEX Advanced (CRM integrations start here) | $250 | AI Receptionist add-on |
| Intercom | Essential + phone | $290 | Fin outcomes, phone minutes |
| Zendesk | Suite Team | $550 | AI agent resolutions, voice usage |
| HubSpot Service Hub | Professional | $900 | $1,500 one-time onboarding |
| Salesforce Service Cloud | Pro Suite | $1,000 | Service Cloud Voice, Agentforce |
| Talkdesk | Voice Essentials | $1,050 | AI add-ons |
| Twilio Flex | Named users | $1,500 | Per-minute voice and messaging |
| Braze | Not built for calling | Quote only | Voice channel |
Dialpad and RingCentral cost a little less than Aircall for 10 users. The gap closes once you add AI agent usage, and neither includes autonomous AI agents for both voice and messaging in the base price. All prices are list prices as of November 2026.
The 10 best customer engagement platforms, reviewed
1. Aircall: best overall for sales and support teams
Aircall is an AI-powered customer communication platform built for sales and support teams. It started as a cloud phone system in 2014 and has grown into one workspace where calls, SMS, WhatsApp and AI agents all run on the same business numbers. More than 24,000 companies use it.
The big idea is simple. Your reps and your AI agents share one system, one set of numbers and one CRM connection. Nothing gets lost between tools.
AI Voice Agents. Aircall's AI Voice Agents answer inbound calls, make outbound calls, qualify leads and resolve routine questions on their own. They speak 38 languages with custom voices, handle interruptions naturally, and hand off to a human with full context when a call needs one.
What makes them useful for sales and support is that they can act, not just talk. During or after a call, an agent can update a CRM record, create a ticket or book a meeting through HubSpot, Salesforce, Zendesk, Shopify, Stripe or Calendly. Customer results include 87% of calls resolved without escalation at TripCity and 90% of after-hours calls handled automatically at SJWD Water District.
Two 2026 additions matter here:
- AI Voice Agent Campaigns let you upload a list of 10 to 5,000 contacts and have an AI agent run the outreach. This is available on every plan.
- Pre-built templates, such as a receptionist or a HubSpot lead qualifier, get an agent live in minutes. US and Canadian accounts can test four ready-made agents from the browser.
AI Messaging Agents. Launched in May 2026, AI Messaging Agents handle inbound SMS and WhatsApp conversations around the clock. They run on your existing Aircall numbers, so there is no SIP trunking, number forwarding or new number to buy. Like the voice agents, they can look up an order, book a meeting, create a ticket or update the CRM, then pass the chat to the right team in Aircall Workspace.
AI Assist for human reps. AI Assist and AI Assist Pro cover the calls your team takes. They produce transcripts, call summaries, sentiment and call scoring, plus live coaching. Transcription works in 18 languages.
Phone system built for teams. Under the AI sits a complete cloud phone system: IVR, smart and skills-based routing, call queues with callback, a Power Dialer for outbound, call whispering and barge for managers, and live monitoring. Reps use desktop, Android and iOS apps, which is why remote and hybrid teams like it. Numbers are available in 100+ countries and new ones are added in a couple of clicks.
Integrations. Aircall connects with 260+ tools, including Salesforce, HubSpot, Zendesk, Intercom, Pipedrive, Zoho, monday.com, Help Scout, Gorgias, Shopify, Slack and Zapier. Calls, recordings and AI summaries are logged to the CRM automatically. Its AI Ecosystem also gives AI agents live access to tools like HubSpot, Attio, Front, Help Scout and Calendly.
Security. Aircall is SOC 2 Type II certified, GDPR compliant, ISO 27001 and PCI DSS certified, and offers a HIPAA Business Associate Agreement. Enterprise plans add SSO and SCIM.
Pricing
| Plan | Price (annual billing) | Key inclusions |
|---|---|---|
| AI Voice Agents only | From $100/mo minimum | AI agents with or without the phone system |
| Essentials | $30/license/mo | Unlimited US and Canada calls, SMS/MMS, shared inbox, IVR, 260+ integrations, 50 AI Voice Agent min/mo |
| Professional | $50/license/mo | AI call summaries, smart routing, Power Dialer, outbound campaigns, whisper and barge, full API |
| Enterprise | Custom (25 users min.) | Unlimited global calls, SSO and SCIM, enterprise SLA, HIPAA |
Paying annually saves 25%. Essentials and Professional need at least 3 licenses, and extra numbers cost $6/mo each. See the Aircall pricing page for local rates.
Pros
- AI agents for voice, SMS and WhatsApp on the same numbers your team uses
- AI agents take real actions in the CRM, helpdesk and calendar
- 260+ integrations on every plan, not locked behind a top tier
- Fast setup, with ready-made AI agent templates
- Strong mobile and desktop apps for remote teams
Cons
- 3-license minimum on self-serve plans
- International outbound calls need a separate rate below Enterprise
- AI Voice Agent minutes beyond the included 50 are billed on usage
Best for: sales and support teams of 3 to 3,000 people who want one platform for human and AI conversations, tightly synced with their CRM.
2. HubSpot Service Hub: best for teams already on HubSpot CRM
HubSpot Service Hub is HubSpot's help desk and customer success product. Its main strength is that it sits on the same database as HubSpot's sales and marketing tools, so a support rep sees the deals, emails and marketing touches behind every ticket.
The Breeze Customer Agent answers questions across chat and email from your knowledge base. Service Hub also has ticketing, a help center, customer feedback surveys and a customer success workspace that flags at-risk accounts with health scores.
Calling is included but limited: 1 phone number on Starter, up to 3 on Professional and up to 5 on Enterprise, with call transcription and coaching on higher tiers. WhatsApp is capped at 1,000 messages per month. Teams that make or take a lot of calls usually pair HubSpot with a dedicated phone platform. Aircall's HubSpot integration is one of the most common pairings.
Pricing: free plan available. Starter runs $7 to $20 per seat per month depending on billing. Professional is $90 per seat per month on annual billing plus a one-time $1,500 onboarding fee. Enterprise is $150 per seat plus $3,500 onboarding.
Pros: one database for sales, marketing and service; strong reporting; free plan to start.
Cons: phone features are basic; costs climb fast at Professional; onboarding fees are mandatory on upper tiers.
Best for: companies whose whole go-to-market team already runs on HubSpot.
3. Zendesk: best for ticket-heavy support teams
Zendesk is one of the most widely used customer service platforms. It is built around tickets, and it is very good at them: routing, macros, SLAs, a help center and a large marketplace of apps.
Zendesk now leads with AI agents, which it says can automate up to 80% of interactions. Copilot adds AI help for human agents inside the ticket view. Voice is available, but serious phone operations usually need the Contact Center add-on, and many Zendesk customers plug in a dedicated phone system instead. Aircall's Zendesk integration logs calls and recordings straight into tickets.
Pricing: Support Team starts at $19 per agent per month and Suite Team at $55, both billed yearly. Suite Professional is $115. Copilot adds $50 per agent, and Contact Center starts at $83 per agent. AI agent resolutions are billed on top.
Pros: mature ticketing; huge app ecosystem; strong help center and self-service.
Cons: add-ons pile up quickly; voice is not its core; sales teams get little from it.
Best for: support teams that work mostly through email, chat and tickets.
4. Intercom: best for chat-first SaaS support
Intercom built the in-app chat Messenger that many SaaS products use. Its Fin AI Agent is one of the best-known support bots and can resolve questions across chat, email, WhatsApp, SMS and phone.
2026 brought two big changes. In May, the company renamed itself Fin after its AI agent, while keeping Intercom as the name of the helpdesk. In June, Salesforce agreed to acquire Fin for about $3.6 billion, with closing expected in Salesforce's fiscal Q4 2027. Buyers who don't run Salesforce should watch how the roadmap changes after the deal.
Phone is offered as a pay-as-you-go channel. Fin Voice is sold through sales at $1.99 per voice outcome. That works for occasional calls, but it is not a full phone system with dialers, IVR and queues.
Pricing: Essential is $29, Advanced $85 and Expert $132 per seat per month on annual billing. Fin AI Agent costs $0.99 per outcome on every plan. Copilot is $29 per teammate per month. There is a 14-day free trial.
Pros: excellent chat and in-app messaging; strong AI agent; clear per-outcome AI pricing.
Cons: voice is an add-on; costs scale with AI volume; ownership change adds uncertainty.
Best for: SaaS companies where most support happens inside the product.
5. Twilio Flex: best for teams that want to build their own
Twilio Flex is a programmable contact center. Instead of a finished app, you get building blocks for voice, SMS, WhatsApp, chat and email, which your developers shape into exactly the workflow you want.
That flexibility is the whole point. It is also the catch. A Flex project needs engineers to build, test and maintain it, and you pay usage on every minute and message on top of the user fee. If you only need Twilio-style APIs for SMS and voice, see our list of the best Twilio alternatives.
Pricing: $35 per monthly active user, or $150 per named user per month. New accounts get 5,000 free active user hours. Voice, messaging and AI are billed by usage.
Pros: almost unlimited customization; strong global network; good for unusual workflows.
Cons: needs developers; total cost is hard to predict; slower to launch.
Best for: large companies with in-house engineering that need a custom contact center.
6. Dialpad: best budget pick with built-in call AI
Dialpad is a cloud phone and contact center platform that has leaned into AI from the start. Live transcription and call summaries are included even on the entry plan. In 2026 it added a no-code Agent Studio for building AI agents and Guardian, a real-time supervisor that watches AI conversations for compliance risks. Dialpad has also announced that it is combining with Ada, the AI customer service company.
The product is split into separate lines: Connect for business calling, Support for the contact center and Sell for outbound sales. That keeps entry prices low, but a team that needs sales and support features may end up buying more than one.
Pricing: Connect Standard is $15 per user per month annually ($27 monthly). Connect Pro is $25 ($35 monthly) with a 3-user minimum, and that is where CRM integrations such as Salesforce, HubSpot and Zendesk start. Dialpad Support starts at $80 per user and Dialpad Sell at $39. AI agents are billed with credits, only when the AI completes an action.
Pros: low entry price; AI transcription on every plan; pay-only-for-work AI credits.
Cons: CRM integrations need Pro; product lines are sold separately; a big ownership change is underway.
Best for: small teams that want good call AI at a low price and don't need deep CRM workflows yet.
7. RingCentral: best for replacing an office phone system
RingCentral is one of the biggest names in business phone systems, used by more than 600,000 businesses. RingEX bundles calling, video meetings and team chat in one app, which makes it a common choice for replacing an old office PBX.
Its AI line-up includes AVA, a virtual assistant included on every plan, and AI Receptionist, a paid add-on that answers and routes calls. The new AI Customer Engagement Bundle adds AI Conversation Expert for call scoring and coaching, priced by quote.
Pricing: RingEX Core is $20 per user per month annually ($30 monthly), Advanced is $25 ($35) and Ultra is $35 ($45). CRM integrations start on Advanced. SMS is capped at 25, 100 or 200 messages per user per month depending on the plan.
Pros: very reliable telephony; video and chat included; strong for multi-site companies.
Cons: SMS limits are tight for sales teams; CRM features need a higher plan; AI agents are add-ons.
Best for: companies that want one vendor for internal and external calling, meetings and chat.
8. Talkdesk: best for large contact centers
Talkdesk is a cloud contact center (CCaaS) aimed at mid-size and large support operations. It is named a Leader in the 2026 Gartner Magic Quadrant for CCaaS and has industry clouds for financial services, healthcare, retail and other sectors.
Talkdesk CXA (Customer Experience Automation) is its AI agent layer. Elite plans add workforce management, screen recording and performance management, which matter once you run hundreds of agents.
Pricing: Digital Essentials is $85 per user per month, Voice Essentials $105, Elite $165 and Industry Experience Clouds $225. Talkdesk Express, for US and Canadian businesses under 50 employees, includes 25 licenses and $100 in free credit with no contract.
Pros: deep contact center features; workforce management; industry-specific packages.
Cons: expensive for small teams; built for support, not outbound sales; longer setup.
Best for: support organizations with 50+ agents and complex routing needs.
9. Salesforce Service Cloud: best for Salesforce-first enterprises
Salesforce Service Cloud is the service side of the Salesforce platform. It handles cases, knowledge, omni-channel routing and field service, and it uses Agentforce for AI agents. The planned purchase of Fin (formerly Intercom) will add another AI agent to the stack.
Service Cloud is powerful but heavy. Most teams need an admin or partner to set it up, and voice comes through Service Cloud Voice or a partner phone system. Aircall is one of those partners, with a native Salesforce Voice integration.
Pricing: Starter Suite is $25 per user per month, Pro Suite $100 (adds CTI and omni-channel routing), Enterprise $175 (adds AI for service), Unlimited $350 and Agentforce 1 Service $550. Paid editions above Starter are billed annually.
Pros: unmatched customization; one platform for sales and service data; huge partner ecosystem.
Cons: high total cost; AI unlocks at Enterprise; long implementation.
Best for: enterprises that already run Salesforce across the business.
10. Braze: best for B2C marketing engagement
Braze is the platform most marketing-led CEP lists put near the top. It runs lifecycle campaigns over email, push, in-app messages, SMS and WhatsApp, with BrazeAI for decisioning and send-time optimization. Brands such as HBO Max, Canva and e.l.f. use it.
It is on this list because many buyers search for "customer engagement platform" and land on Braze. For sales and support teams, it is the wrong tool: there is no phone channel and no live agent workspace. It works best next to a conversational platform like Aircall, not instead of one.
Pricing: quote-based only. Contracts are built from a platform edition (Go, Select, Pro or Enterprise), monthly active users and action credits.
Pros: excellent cross-channel campaign builder; strong AI decisioning; scales to huge audiences.
Cons: no voice; no public pricing; built for marketers, not reps.
Best for: B2C brands running high-volume lifecycle marketing.
How to choose the right customer engagement platform
Start from the channel your customers actually use, not from the feature list. If your pipeline and your support queue run on calls and texts, a platform without a native phone system will leave a gap no AI chatbot can fill.
A 7-point checklist for sales and support leaders
- Channels. Does it handle voice, SMS and WhatsApp natively, on the same numbers? Or is voice an add-on bought from someone else?
- AI that finishes the job. Can the AI agent update the CRM, create a ticket or book a meeting during the conversation? An agent that only takes messages saves very little time.
- How AI is billed. Per minute, per outcome or per credit? Model your real volume. A $0.99 outcome fee is cheap at 200 resolutions a month and expensive at 20,000.
- CRM and helpdesk depth. Check that calls, recordings, transcripts and summaries log automatically to the right record. Also check which plan unlocks the integration. On some tools it starts two tiers up.
- Setup time. Can a manager launch it in days, or does it need developers and a partner? Time-to-value matters as much as list price.
- Remote and hybrid support. Reps should get the same number, queue and CRM view on desktop, browser and mobile.
- Security and compliance. Look for SOC 2 Type II, GDPR, and HIPAA or PCI DSS if you handle health or payment data.
Quick picks by situation
| Your situation | Best pick | Why |
|---|---|---|
| Sales and support teams on calls and messages | Aircall | Native phone system, AI Voice and Messaging Agents, 260+ integrations |
| Whole team already on HubSpot | HubSpot Service Hub + Aircall | Shared CRM data, with Aircall covering calls |
| Ticket-first support desk | Zendesk + Aircall | Mature ticketing, with calls logged into tickets |
| Support inside a SaaS product | Intercom | Strong in-app chat and Fin AI Agent |
| Custom-built contact center with developers | Twilio Flex | Fully programmable |
| Smallest budget | Dialpad | Lowest entry price |
| 50+ agent support operation | Talkdesk | Workforce management and industry clouds |
| Lifecycle marketing at B2C scale | Braze | Built for campaigns, not calls |
Mistakes to avoid
- Buying a marketing CEP for a sales team. Email and push tools won't help reps follow up on calls.
- Comparing only seat prices. AI usage, phone minutes, onboarding fees and the plan that unlocks your CRM integration change the real cost. Check current AI sales deals before you buy.
- Running separate tools for AI and humans. When the AI agent and the human team use different systems, handoffs lose context and customers repeat themselves.
- Skipping a pilot. Run a 2-week trial with real calls and real CRM records before you sign an annual contract. Our AI adoption strategy guide shows how to set one up.
Final verdict: Aircall is the best customer engagement platform for sales and support teams
Aircall wins because it is the only platform here where the phone system, the AI agents and the CRM connection are one product. Every other tool is missing at least one of those three, or charges extra for it.
Here is how the strongest contenders compare on the technical points that matter most to sales and support teams:
| Capability | Aircall | Dialpad | RingCentral | Zendesk | Intercom |
|---|---|---|---|---|---|
| Native cloud phone system | Yes, every plan | Yes | Yes | Add-on | Pay-as-you-go |
| Autonomous AI voice agent (inbound and outbound) | Yes, 38 languages | Yes, credit-billed | AI Receptionist add-on | Not core | Fin Voice via sales |
| AI agent for SMS and WhatsApp on the same numbers | Yes | Partial | No | Separate channels | Yes |
| AI takes actions in CRM, helpdesk and calendar | Yes | Yes | Limited | Within Zendesk | Within Intercom |
| CRM integrations on the entry plan | Yes, 260+ | Pro plan and up | Advanced plan and up | Helpdesk only | Helpdesk only |
| Outbound sales tools (Power Dialer, AI campaigns) | Yes | Separate product (Sell) | Limited | No | No |
| Setup without developers | Yes, templates | Yes | Yes | Yes | Yes |
| SOC 2 Type II, GDPR, HIPAA option | Yes | Yes | Yes | Yes | Yes |
Three technical reasons put Aircall ahead:
- One system for human and AI conversations. AI Voice Agents and AI Messaging Agents run on the same numbers, routing and workspace as your reps. When an agent hands off, the rep sees the full context. There is no SIP trunk, no forwarding and no second vendor in the middle.
- Agents that close the loop. Aircall's AI agents don't stop at answering. They update records, create tickets and book meetings in tools like HubSpot, Salesforce, Zendesk and Calendly while the conversation is still going.
- Integrations that come standard. 260+ integrations are included from the $30 Essentials plan. On Dialpad and RingCentral, CRM integrations start on a higher plan, and on helpdesk-first tools the phone itself is the add-on.
Dialpad is the better pick if price is the only thing that matters. Zendesk and Intercom are still the right core for ticket-heavy or in-app support, and both pair well with Aircall. But if your team sells and supports customers through calls and messages, Aircall is the most complete choice in 2026.
Next step: start a free Aircall trial and test an AI Voice Agent template on your own number before you commit.
