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Top Rated Inside Sales Software with Open source - Page 8

Last updated: September 2026

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265 software options

JustCall logo

Cloud-based AI communication platform for sales teams

More dials, better coaching, smarter follow-ups. JustCall gives inside sales teams the AI tools to close faster. Free 14-day trial.

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Lusha logo

Cloud-based B2B sales intelligence for GTM teams

Lusha is a cloud-based B2B sales intelligence platform offering verified contact data, real-time buying signals, and AI-driven.

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Sales Sling logo

Cloud based auto dialer & lead management platform

Sales Sling is a cloud-based dialer & lead management platform for sales teams which offers tools for converting leads into sales, managing sales pipelines, making outbound calls with the auto-dialer functionality, tracking and recording inbound & outbound calls, managing employee performance & more

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Dialshree logo

Cloud-based contact center solution

DialShree is a cloud-based software designed to help businesses manage customer interactions. It can be deployed on any web server or cloud platform and can be used to manage interactions across multiple channels.

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lemlist logo

Cold outreach solution

lemlist is a user-friendly cold outreach solution that helps users reach customer inboxes and receive replies.

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CallRail logo

Call Tracking & Analytics

CallRail helps 200,000+ businesses turn more leads into better customers. Our software delivers real-time insights that help our customers market with confidence.

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SureVoIP logo

Internet telephony service provider for businesses in the UK

SureVoIP is an internet telephony service provider supplying VoIP products and services for businesses in the UK

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CTM logo

Conversation analytics for marketing attribution

CTM provides conversation analytics software that helps businesses track which marketing campaigns drive conversions across calls, chats, forms, and texts. The platform features AI-driven insights that analyze customer conversations to uncover preferences and behaviors, while offering workflow automation tools to streamline sales pipelines through intelligent call routing and lead management capabilities.

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Fastcall logo
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Salesforce CTI: Native Phone Dialer + SMS

FOR SALESFORCE TEAMS: Fastcall CTI is a native app built for and dedicated to Salesforce. Powered by Twilio, Fastcall increases productivity & improves customer service with advanced features such as Call Routing, IVR, Call Recording, Omni-Channel, SMS & MMS. High-Velocity Sales and Call Insights.

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Adversus logo

Cloud-based Software & CRM solution

Adversus is a Danish cloud-based outbound sales platform, founded in 2015 in Aarhus. Built for teams that run high-volume calling operations, it gives reps an efficient workflow and managers real-time visibility into activity, campaign performance, and call outcomes. Core features include automated

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MK logo
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Calibration and metrology management software

MK is a calibration and metrology software that manages instrument control, advanced calculations, and calibration certificate generation. The system compares instrument measurements against references, calculating errors, uncertainties, and tolerances while supporting various instrument types including pressure gauges, scales, and thermometers. It can be installed locally or accessed via web, with features compliant with industry standards like INMETRO and IEC 17025.

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EVERLEAD logo
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EVERLEAD - Sales Enablement Software

EVERLEAD is comprehensive sales enablement software tailored for businesses of all sizes. With easy-to-use features like lead management tools, email marketing, and sales automation workflows, EVERLEAD helps grow your business.

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Enghouse Contact Center logo

Cloud-based contact center platform

Enghouse Interactive Contact Centers, featuring the omni-channel Enghouse CCaaS, are highly reliable, secure, feature-rich solutions that deliver optimal customer experiences (CX) by quickly connecting resources across an entire organization to manage customer inquiries over any channel or device.

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NUACOM logo

All-in-one Cloud Phone System for SMBs

NUACOM offers an all-in-one Cloud phone system for SMBs that need a modern, fully scalable business communication solution. The platform offers over 50 business-class features to help boost productivity, connect departments, and centralize telephony for all locations.

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InsideSales logo
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Cloud-based sales engagement platform for B2B teams

Cloud-based B2B sales engagement platform with AI prioritization, multi-channel outreach, and pipeline analytics.

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4outbound logo
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Outbound contact plugins & APIs

4outbound offers a suite of plugins and APIs to streamline and ensure compliance in outbound communication. Its features include intelligent data orchestration, various auto-dialing options, omnichannel support, and intuitive agent workflows.

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Wavo logo
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Access 1.4M E-Commerce Leads and Boost Sales by 3x

Access untapped e-commerce decision-makers using Wavo’s vast contact database and AI-powered outreach tools to boost your sales.

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SalesCaptain logo

AI-powered front desk for phone and text.

SalesCaptain is an AI-enable customer communication platform designed for local businesses seeking to streamline customer interactions. The system offers realistic AI phone and chat agents that handle tasks such as appointment reminders, lead qualification, and after-hours support. SalesCaptain integrates with numerous business tools while providing unified communication features that help businesses improve customer retention.

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FreJun logo

Call automation for data-driven teams

FreJun is a call automation platform for outbound teams. FreJun meets your end to end communication needs and integrates with your workflow tools seamlessly.

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LeadMerge logo
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AI-driven B2B lead generation platform

LeadMerge is a lead generation platform that uses AI-powered technology to help businesses discover prospects and manage sales pipelines. The software includes features such as contact management, email campaign creation and tracking, bulk email sending, and a browser extension for capturing leads. LeadMerge offers AI-driven search capabilities, automated lead syncing, and data enrichment tools designed to identify decision-makers and generate lead insights for B2B sales teams.

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AuguTech logo

Hosted predictive dialer & switch board solution.

Our aim is focused on maintaining mutually beneficial relationships with clients. By utilizing our in-depth expertise, we provide what is necessary to optimize call center operations. We develop customized dialing solutions to reach specified operational goals.

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Outplay logo
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Cloud-based sales engagement platform for SMBs

Cloud-based B2B sales engagement platform for SMBs with multi-channel outreach automation, conversation intelligence, and CRM.

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Quvu logo

IVR and predictive dialer software

Quvu is a transformational cloud-based contact center management solution that helps businesses deliver real-time analytics, dialer, and Ofcom compliance. Key features include a predictive dialer, call recording, Interactive Voice Response (IVR), queue management, and role consoles.

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CallShaper logo

Revolutionizing Contact Center Performance with CallShaper.

Outbound + Inbound, IVR, AI, Dispatch, QA, Omni, reporting, 25 Lines/agent, soft-phone, TCPA, 99.999% uptime, API, WebHooks and more!

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Vonage Contact Center logo

Cloud Contact Center & Inside Sales Software for Salesforce

Vonage Contact Center, formerly NewVoiceMedia, is designed to leverage Salesforce capabilities & data to deliver the best Customer Experiences - from routing using any Salesforce object to popping up the right CRM data & call history for agents and offering analytics across CRM & call data.

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