Cold outreach and high-volume sales calling demands so much more than “dial-and-hope” in 2025. With buyers screening unknown numbers and inboxes full to the brim, teams need tools built for efficiency, intelligence, and real results. For this comparison, we are looking at two contenders: JustCall and GrowOutly.

Customer Service

Both platforms have the capability for a business VoIP/cloud phone system, but each is built for somewhat different purposes. This blog walks through their features, pricing, and performance claims, and finally, which may be a better fit for your sales team.

Overview of JustCall

What it is and who it’s for
JustCall is a cloud-based business communication platform offering phone and SMS capabilities, with integrations and features for sales and support teams.

Key highlights include:

  • Local and international phone numbers in more than 58 countries for calling and SMS.
  • Ability to make/receive calls through the web, desktop, or mobile app.
  • Multichannel communication: voice, SMS/MMS, WhatsApp shared inbox, etc.
  • Strong integrations: 100+ business tools/CRMs supported.
  • Security and compliance: 256-bit encryption, GDPR, HIPAA, etc.

It works great for those locations that require a robust business phone system, multi-channel capability, and reasonable automation.

Limitation in outbound/high-volume scenario

While JustCall offers dialing, SMS, and voice capabilities, there are a few gaps in features when it comes to high-volume outbound outreach, especially of cold calls. Advanced local-presence dialing, predictive retry timing, AI-led conversation intelligence, among features, are less prominently described.

Overview of GrowOutly

What it is and who it’s for

GrowOutly is a VoIP platform built specifically for outbound sales teams to increase connect rates, shorten sales cycles, and automate outreach.

Some of its major claims and features include:

  • “3× your connect rate and decrease sales cycles by 30% with AI-powered dialing, local presence, and conversation intelligence.”
  • Local presence dialing: showing local area codes so prospects are more likely to answer
  • Parallel dialing engine: dialing several numbers at once, connecting whoever picks up
  • Voicemail detection, so skip voicemail drops
  • One-click power dialer capability with queueing of 500+ calls
  • Automate follow-ups, including: SMS, email, and tasks, based on the call outcome
  • Real-time conversation intelligence: detecting buying signals, coaching insights
  • Deep CRM sync (Salesforce, HubSpot, Pipedrive) and workflow automation
  • Pricing tiers directed toward outbound outcomes, much more than just telephony

If your focus is aggressive outbound outreach, high volumes, and performance metrics, connect rate, call volume, sales cycle reduction, GrowOutly is built with those things in mind.

Feature-by-Feature Comparison

Connect Rate and Dialing Efficiency

JustCall: Outbound calling, power dialer features, some automation, and SMS are supported, but the publicly highlighted emphasis is broader business communications rather than hardcore cold-dialing optimization.

GrowOutly: Built explicitly to help improve connect rate.

  • Improve answer rates with local presence dialing
  • AI-optimized call times-to-reach prospects when they’re more likely to pick
  • Parallel dialling engine for multiple numbers simultaneously
  • Voicemail detection to avoid wasted time
  • Claimed results: Connect rate increase from “8 % to 31 %” in month one for some teams.

GrowOutly has a stronger focus and tooling for improving the dial-connect metric.

Automation and Workflow

JustCall: Provides automation such as call routing, IVR, shared inboxes, click-to-call, integrations with CRMs, and multi-channel messaging.

GrowOutly: Takes this further for outbound sales-oriented workflows:

  • Queueing of large call lists
  • Automated sequence: call – SMS – email – task trigger
  • Real-time CRM sync
  • Calendar booking from call
  • Automation of tasks based on call outcome

For teams focused on automated outreach sequences and high volume, GrowOutly has more powerful workflow automation tailored to sales.

AI and Conversation Intelligence

JustCall: Offers AI features: real-time agent assist, sentiment analysis, call scoring, verbatim insights.

GrowOutly: Emphasizes AI applied specifically to outbound sales, such as:

  • Buying-signal detection
  • Predictive lead scoring
  • Coaching insights
  • Smart follow-ups

Both use AI, but GrowOutly’s is purpose-built for sales outreach and closing deals, giving it the edge.

CRM Integrations and Ecosystem

JustCall: More than 100integrations, strong environment across support, sales, communications.

GrowOutly: Native integrations to major CRMs, auto-syncs all interactions.

Both integrate well; if your need is broad, calls, support, SMS, WhatsApp then JustCall may give broader breadth, whereas GrowOutly focuses on sales stack depth.

Pricing

JustCall: According to recent review, the team plan is ~ $29/user/month billed annually for the basic feature set.

GrowOutly: Clearly published pricing.

  • Starter:US$49/user/month- 500 minutes + local presence + power dialer + CRM sync
  • Growth:US$99/user/month- includes 2000 minutes, AI conversation intelligence, workflows, priority support
  • Enterprise:Custom

JustCall is cheaper for general business communications, while GrowOutly is more expensive but provides far stronger sales outreach-focused capabilities.

Performance and Outcomes

JustCall: Users frequently cite improvements in communication and faster response times.
Example: “40% higher contact rate”, “30% faster first call resolution” for support cases.

GrowOutly: Outbound sales metric claims include:

  • 3× connect rate
  • 30% faster deal closure
  • Reps spend 80% of their time selling vs. doing manual tasks

GrowOutly provides more measurable, sales-oriented metrics related to outreach performance.

Who Should Use Which?

Use JustCall if you:

  • Need a reliable business VoIP system with calling, SMS, and multi-channel communication
  • Support incoming/outgoing calls, SMS, WhatsApp
  • Want many integrations
  • Don’t have extremely large outbound call volumes or heavy sequence automation needs
  • Are cost-sensitive and want broad communication features, rather than highly optimized sales outreach features

Use GrowOutly if you:

  • Your primary goal is aggressive outbound sales outreach
  • You conduct high-volume cold calling, connecting with decision-makers
  • You need optimized connect rates, local presence dialing, parallel dialer, sequence automation, AI buying-signals, etc.
  • You already have a sales stack, a CRM, an outreach process
  • You’re willing to pay more per user for better performance with measurable sales outcomes

If you compare simply as “business phone, SMS, basic automation”, JustCall is a solid choice and gives broad utility for many teams.

When one digs deeper into sales outbound performance, dialing volume, connect rates, workflow automation, AI insights, actual outcome metrics, GrowOutly is more specialized and a higher performance solution.

In short,
For everyday business communications: JustCall.
For high-volume, results-driven outbound sales outreach: GrowOutly.

Cold outreach and high-volume sales calling demands so much more than “dial-and-hope” in 2025. With buyers screening unknown numbers and inboxes full to the brim, teams need tools built for efficiency, intelligence, and real results. For this comparison, we are looking at two contenders: JustCall and GrowOutly.

Visit GrowOutly – 3x Your Connect Rate with AI-Powered VoIP for Outbound Sales Teams!

Both platforms have the capability for a business VoIP/cloud phone system, but each is built for somewhat different purposes. This blog walks through their features, pricing, and performance claims, and finally, which may be a better fit for your sales team.