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Call Suppression

Silence What Doesn’t Matter

Avoid unnecessary repeat dials and protect agent productivity. Voiso’s Call Suppression automatically pauses numbers once daily call-attempt limits are reached to help you stay compliant and respect customer experience.

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Block the Noise. Prioritize the Real Conversations.
Voiso’s Call Suppression enforces smart daily redial limits, ensuring agents stay focused and outreach stays customer-friendly and compliant with dialing best practices.
Dynamic Suppression Lists
Automatically suppress numbers that reach your daily call-attempt limits, with system-wide and team-level controls.
Custom Rules Engine
Customize maximum call-attempt limits by team to match your outbound strategy and compliance requirements.
Cooldown & Retry Logic
Pause unresponsive leads for a set time, or limit call attempts per day. Avoid lead fatigue and wasted dials.
Fraud & Spam Pattern Detection
Prevent excessive calls to the same number to avoid wasted attempts and improve customer experience.
Campaign-Level Suppression Sync
Apply suppression settings per campaign or queue. No more blanket rules, just smarter segmentation.
Real-Time List Refresh
Suppression lists update live across your system, no downtime, no need to restart campaigns or re-upload files.

Your Calls, Your Control

Intelligent Call Filtering

Not all calls are created equal.

With Voiso, you can suppress known spam, opt-outs, and low-quality numbers before they hit the queue.

It’s precision filtering that protects agent focus and prioritizes productive conversations.

call scoring post call

Rules That Work the Way You Do

Tailor suppression logic to match your outreach strategy, by campaign, channel, or lead type.

Whether you’re reducing contact frequency or avoiding repeat dials, Voiso gives you the levers to tune engagement, not shut it off.

Compliance Without Complexity

Built-in dialing limits help support compliant outbound practices and reduce risk from excessive call attempts.

From cooldown timers to country-specific rules, everything is trackable, transparent, and ready to scale.

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Call Reporting

Performance That Speaks for Itself

Monitor callback volume, completion rates, SLA adherence, and customer feedback, all in one place. Voiso’s reporting gives teams the data to improve queue logic, retry flows, and even staffing patterns.
Explore
74%
reduction in calls to DNC-listed numbers
28%
increase in agent time spent on productive calls
5x
fewer compliance-related call flags

Results That Matter

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Up to 30% fewer unproductive calls
Save time and effort by preventing repeated dials to unresponsive or irrelevant numbers.
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15% improvement in agent talk-to-dial ratio
Keep your agents focused on real conversations, not dead ends or flagged contacts.
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Reduction in DNC compliance risks
With automated suppression syncing, you avoid costly mistakes and protect your brand reputation.
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Faster outbound campaign velocity
Clean lists mean fewer delays, smoother execution, and more calls completed per hour.
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Lower burnout from rejection-heavy lists
Reduce agent exposure to repetitive or hostile contacts and preserve team morale.
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Smarter lead prioritization
Filter out noise and elevate the leads most likely to convert or engage.
Customers
Hear from Voiso
customers
Our platform streamlines the management of high-performing contact centers, allowing businesses to deliver more value to their customers.
Contact Sales
4x
More outbound calls per hour
“We have been using Voiso for years, and it has helped drive our NPS. I highly recommend it to any looking for a reliable call center software solution.”
Vanessa, Head of Hotel Products
50+
Increase in agents productivity
“With Voiso, we have finally found a solution that covers our call center needs. Improved agent productivity by 50+% in just a few weeks”
Bernardo, Customer Experience Director
+16
Opened new markets
“Voiso is a cost-effective customer experience solution that allows us to provide service across 16 markets from the US to the Middle East.”
Tuncay, Director
100+
Agents, scaled from 15
“100% of our bookings were made by phone. With Voiso automation, we grew from 15 agents based on Bali into a 100+ employee omnichannel contact center operating across continents.”
David, COO at Karma Group
Integrations
Seamless integration with your CRM
Sync with your favorite apps in just a few clicks to leverage the power of Voiso’s contact center features.
Integrations

Get started in less than 24 hours

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FAQ

How does call suppression improve compliance with telemarketing laws?

Call suppression plays a quiet but critical role in keeping your business compliant with regional and national call regulations. Many countries have strict laws about who you can contact, how often, and whether a user has previously opted out. If you’re running outbound campaigns, especially across borders, there’s a good chance you’ve got several rules to juggle at once.

What suppression does is help automate that complexity. It ensures calls aren’t placed to numbers listed on Do Not Call registries, or to leads who’ve opted out via internal forms or past conversations. You can even configure it to flag repeat attempts made within a certain timeframe, a common compliance risk. Without suppression, you’re relying on your agents or outdated blacklists to do the job manually, and that’s where mistakes happen.

It’s also worth noting that good suppression logic helps protect your brand from getting flagged by carriers, reducing your risk of being marked as spam.

Can call suppression reduce agent burnout?

Yes, and often in ways that aren’t immediately obvious. When agents repeatedly call dead numbers, hostile leads, or individuals who clearly don’t want to be contacted, it takes a psychological toll. It’s not just about wasted time. It’s about momentum, motivation, and mental energy. Call suppression helps break that cycle by reducing unproductive interactions before they even happen.

For instance, if someone has been marked “do not call” after a particularly negative exchange, suppression keeps that number out of the call queue. Or maybe a lead hasn’t answered after five attempts in a week, it might be time to pause, not push harder. Automating that pause gives agents cleaner, more actionable lists. They’re not guessing or second-guessing. That clarity matters.

Over time, suppression creates a healthier feedback loop. Happier agents, better conversations, less friction. It’s not the only tool for reducing burnout, but it’s a smarter foundation to build around.

How should businesses balance call suppression with contact persistence?

That’s a tricky one, and honestly, there’s no universal answer. Some sales strategies encourage repeated follow-ups. Others warn against coming off as aggressive. The truth lies somewhere in between, and suppression tools help find that middle ground, if configured thoughtfully.

One way to strike a balance is by setting dynamic rules. For example, allow three attempts in the first 48 hours, then pause for a week before trying again. Or exclude anyone marked “not interested” unless they re-engage through another channel. Suppression doesn’t mean silence forever. It’s just about spacing interactions in a way that feels respectful, and smarter.

Also, think of suppression as a filter, not a barrier. When used right, it helps prioritise who you reach out to next. You’re not giving up on the lead. You’re just choosing a better time. Or handing it off to a different team. Or switching the communication channel. It’s nuance that matters here, and suppression gives you the levers to adjust, not lock the door.