JustCall vs. SIPSTACK Comparison


JustCall JustCall.io	SIPSTACK	+	+
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		Related Products Aircall Aircall is an AI-powered customer communications and intelligence platform that unifies phone, messaging, and call center operations. Designed for sales and support teams, it enhances every interaction with features like AI Voice Agents, real-time conversation coaching, and integrated WhatsApp messaging. With powerful analytics, call recording, and shared inboxes, teams gain clarity and can resolve customer issues faster. The platform is easy to set up, offering quick number claiming, seamless integrations, and customizable workflows. Trusted by over 23,000 companies worldwide, Aircall helps businesses improve connection rates, boost CSAT scores, and streamline onboarding. By combining automation with human-first AI, Aircall reduces busywork so teams can focus on building better customer relationships. 1,838 Ratings Visit Website CTM CTM, formerly known as CallTrackingMetrics, is a conversation intelligence and call tracking platform that helps businesses measure marketing performance, manage customer communications, and improve sales conversions. The software tracks phone calls, text messages, website forms, and chats to identify the advertising campaigns and channels that generate customer inquiries. Its AI-powered conversation analytics provide call transcription, summarization, sentiment analysis, and lead scoring. CTM also offers intelligent call routing, automated follow-ups, AI voice agents, and contact center management tools. Reporting dashboards help organizations analyze marketing attribution, advertising return on investment, customer interactions, and sales team performance. The platform integrates with Google Ads, Google Analytics, HubSpot, Salesforce, and other business applications to connect marketing data with customer conversations and revenue outcomes. 939 Ratings Visit Website Dialpad Support Dialpad Contact Center is Dialpad's AI-native platform for customer experience — the connective layer where conversations, intelligence, and action come together in real time. At its core, Dialpad Contact Center is the world's first Agentic AI contact center: AI agents that don't just transcribe or summarize, but reason, resolve, and act autonomously across the full customer journey. Instead of routing customers between disconnected tools, Dialpad Contact Center unifies voice, digital, and human agents in one platform, connecting the voice and data silos that have historically kept support teams siloed and reactive. Every interaction becomes part of a compounding intelligence layer. With 775M+ AI recaps and counting, Dialpad Contact Center turns each conversation into operational insight that improves resolution rates, agent productivity, and CX outcomes over time. That intelligence is continuously optimized, governed, and made visible across your organization through Dialpad's Guardian safety layer, ensuring secure, enterprise-grade AI operations at scale. Dialpad Contact Center is built to resolve up to 80% of issues autonomously, reducing operational complexity while giving human agents the context they need for what still requires a human touch. People stay at the core; intelligence sits at the edge, ready to act the moment it's needed. Rather than asking enterprises to take autonomy on faith, Dialpad Contact Center is validated through Dialpad's Proving Ground, so teams can confirm ROI and reliability before committing at scale — a modern alternative to legacy, static bots and fragmented support stacks. 1,607 Ratings Visit Website Intermedia Unite Intermedia Unite® brings business communications, collaboration, and customer engagement into one easy-to-use platform—keeping teams connected, productive, and responsive from anywhere. It replaces fragmented tools by combining business phone service, video conferencing, team chat, and file sharing into one seamless experience, so employees can collaborate without switching apps. Unite delivers enterprise-grade calling with 100+ features, integrated customer engagement, and enhanced Microsoft Teams experiences. With mobile and desktop apps, users can call, meet, message, and engage customers from anywhere while maintaining a consistent business identity. AI-powered transcription, summaries, and insights help teams capture details and follow up efficiently. Backed by 99.999% uptime and J.D. Power-certified support, Unite ensures reliable performance—resulting in simpler communications, more productive teams, and better customer engagement. 1,634 Ratings Visit Website Bigly Sales Bigly Sales is a fully managed AI calling platform for sales teams, lead generation companies and call centers. AI voice agents call, qualify, nurture and live-transfer leads around the clock, answer inbound calls, and book appointments, while every outcome writes back to your CRM. You don't assemble the stack yourself. Bigly writes your call scripts with Claude, ChatGPT and other leading LLMs, then tests script versions against each other on live traffic and keeps the one that converts best. Phone numbers, carrier registration, more than 200 whitelisted lines with local presence, spam monitoring, call routing and campaign setup are handled for you before the first dial. Each call is checked against consent, suppression lists, known TCPA litigants and state and federal calling rules, including quiet hours, before it is placed. Reporting is built around the result you pay for. The dashboard tracks success rate per lead, cost per transfer and cost per human contact, plus a dial-to-transfer funnel that shows where calls drop off: no answer, DNC request, failed qualification, or a transfer the agent never picked up. Leads can arrive in real time from API vendors or as uploaded lists, and every source is ranked by success rate and cost, so you can see which lead vendors pay off. An hour-by-hour view shows when your leads actually convert. The Bigly Sales MCP server lets you run the account by asking Claude or ChatGPT: add leads to an active campaign, check pacing and minute usage, pull call summaries and transcripts, or find out who picked up today and wants a demo. Common uses include aged and dead lead reactivation, speed-to-lead follow-up on web and vendor leads, appointment setting, inbound answering and overflow, and warm transfers to licensed agents in insurance, lending, home services, legal, auto and political fundraising. Integrations include HubSpot, Salesforce, Zoho CRM, Pipedrive, GoHighLevel, Close, Follow Up Boss, Keap, monday CRM, Freshsales, ActiveCampaign and Microsoft Dynamics 365, plus an API for real-time lead posting. Plans start at $99 a month for 500 minutes, and Hunter, Closer and Rainmaker add a dedicated account manager who watches results and tunes your campaigns. New customers start with a free 30-minute AI calling setup ($3,000 value): the team builds your calling system live, shows the MCP and runs a test call. 9 Ratings Visit Website Zoom Phone Zoom Phone is an AI-powered cloud-based business phone system that provides voice calling, messaging, and unified communications through a Voice over Internet Protocol (VoIP) platform. The software enables employees to make and receive business calls from desktop computers, mobile devices, and compatible desk phones. Its calling features include auto receptionists, call queues, call forwarding, voicemail, call recording, SMS, and intelligent call routing. Built-in AI capabilities provide post-call summaries, voicemail transcription, action item extraction, and automated follow-up assistance. Zoom Phone also supports an optional AI receptionist that answers customer inquiries, schedules appointments, and transfers calls to appropriate employees. The platform integrates with Zoom Meetings, Zoom Chat, Salesforce, Microsoft, Google, and other business applications while providing centralized administration and call analytics. 2,944 Ratings Visit Website DialedIn DialedIn is a modern call center software designed to transform customer interactions and streamline your operations, helping teams achieve more daily. By automating and optimizing key workflows across inbound, outbound, and blended environments, DialedIn helps you boost agent productivity and deliver better outcomes across every call. Key features include: • Fast Setup & Deployment • User-Friendly Interface • Advanced Predictive, Preview & Progressive Dialing • Smart Call Routing • No-Code Integrations • Comprehensive Reports • Real-Time Analytics • Security & Compliance • Scalable Architecture • Spam Mitigation With Our Patented CleanCallerID™ Technology • Exceptional 24/7 U.S.-Based Support • Flexible Pricing Options Choose a package that fits your team and budget. At our core, DialedIn is passionate about providing exceptional customer service. That’s why we are constantly innovating and improving our solutions to ensure that our clients are always ahead. 625 Ratings Visit Website 800.com 800.com is a business phone and call tracking platform that helps small and growing businesses understand, manage, and respond to inbound calls more effectively. The platform provides local and toll-free numbers, call tracking, call recording, voicemail, SMS, and detailed call reporting so teams can see where calls come from and how they’re handled. Businesses use 800.com to track phone leads across websites, ads, social media, and offline marketing, improve response times, and follow up on missed calls. With integrations for Google Ads, GA4, Meta, Microsoft Ads, and popular CRMs, 800.com connects call data to marketing and sales workflows. The platform is easy to set up, flexible as businesses grow, and designed to turn phone calls into clearer insights and better customer experiences. 2,436 Ratings Visit Website Adversus Adversus is an outbound dialing solution that helps you streamline your call strategies, automate manual processes, and provide valuable insights to improve your outbound workflows and efficiency. Adversus was born in 2015 after our founders experienced a lack of flexibility with the solution they worked with. The dream was to build an outbound solution that would change the game․ We believe in user-driven innovation, and we acknowledge that every single user has different needs and demands. We provide a solution that incorporates flexibility and customization to every aspect of the workflow. At Adversus, our primary focus is to have a future-proof solution that never falls behind. We do not just want to adapt to the market but instead push the boundaries of what is possible. Adversus is used by businesses in a wide range of industries, with the common goal to make their outbound call activities more efficient. The size ranges from one to several hundred end-users. 172 Ratings Visit Website Squaretalk Squaretalk is a powerful contact center solution that transforms how modern teams connect with prospects and customers, convert sales opportunities, and grow their operations. The combination of AI Voice Agents, calling, power dialing, WhatsApp Business messaging, SMS, email, AI-powered automation, and affordable scalability ensures that companies of all sizes shorten their sales cycle and elevate outreach without additional complexity or costs. Squaretalk’s platform offers omnichannel communication, powerful call-handling features, automated transcripts, sentiment analysis, contact management, customizable workflows, advanced reporting, and enterprise-grade security. The internal chat allows for quick sync, better mentoring, smoother escalations, and the unification of internal and external communication in one platform. With local numbers in 150+ popular and niche destinations, we enable businesses to establish and maintain a local presence, build trust, and support their global expansion. 314 Ratings Visit Website
About The Cloud Phone System of choice for modern sales and support teams. End clueless conversations by adding context to every call. Call software, virtual numbers, SMS campaigns, native CRM integrations, and lots more at just $25 per user. - 100+ integrations with CRM & Business tools - Click to call from CRM - Go live in 70+ Countries - SMS Workflows & Automation - 3 sales dialers to choose from - Call queueing and forwarding - Comprehensive analytics - Conversation intelligence & much more Get 70% off on your first month!	About SIPSTACK combines cloud PBX, business messaging, and AI call handling in one communications platform for businesses. Nova provides extensions, auto attendants, ring groups, call queues, call recording, voicemail-to-email with AI transcription, desktop and mobile apps, and IP desk phone support. Flare supports two-way SMS/MMS, messaging campaigns, automated replies, and built-in 10DLC registration from business numbers. Aura AI voice agents answer and resolve calls and provide transcripts, summaries, and sentiment analysis. SARA is an in-app assistant that makes account changes from plain-language requests. The apps are available for Windows, macOS, iPhone, iPad, and Android, and the platform also works in a web browser. SIPSTACK offers month-to-month subscriptions, free number porting, and a 14-day free trial.
Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Not Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported	Platforms Supported Windows Supported Mac Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported
Audience Companies of all sizes that need a powerful virtual phone system for sales, support, and making calls	Audience Small and mid-sized businesses in Canada and the US that want a cloud phone system, business texting, and AI call answering in one place.
Support Phone Support Supported 24/7 Live Support Supported Online Supported	Support Phone Support Supported 24/7 Live Support Not Supported Online Supported
API Offers API Not Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $30 per user per month Or $24per user per month if billed annually Free Version Not Supported Free Trial Not Supported	Pricing $19/user/month Nova Core is $19/user/month with monthly billing. Annual prepayment lowers the effective Core rate to $15.20/user/month, billed as $182.40 per user per year. Nova Pro includes a 14-day free trial and converts to a paid subscription unless canceled or changed before the trial ends. Plans have no long-term contracts and can be canceled anytime. Free Version Not Supported Free Trial Supported
Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 5.0 / 5 design 5.0 / 5 support 3.0 / 5 Read all reviews	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software
Pros & Cons from Real Users Pros Love this Auto Dialer product. Features are extremely easy to use and are a must for any small to medium enterprise that needs to gain better traction making phone calls. Easy to upload contacts and build simple campaigns. Easy to add teams and manage team member. Pricing is great. Cons Support isn't fantastic. Calls come at crazy times of the day and night. Support doesn't respond very quickly and required nearly one week to get the trial going.
Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported
Company Information JustCall.io Founded: 2016 United States justcall.io	Company Information SIPSTACK Founded: 2016 Canada sipstack.com
Alternatives Intermedia Unite Intermedia	Alternatives D Line DaVinci Tech Solutions
Dialpad Support Dialpad	VoiceShot
Dialpad Connect Dialpad	Frontier SmartVoice Frontier Communications
Aircall	Votelly
NiCE CXone Mpower NiCE View All	CaberTel View All
Categories AI Customer Service Supported AI Customer Support Agents Supported AI Dialers Supported AI Phone Answering Agents Supported AI Receptionists Supported AI Voice Agents Supported Business Phone Systems Supported Call Center Supported Call Center Infrastructure (CCI) Supported Call Monitoring Supported Contact Center Quality Assurance Supported Parallel Dialers Supported Sales Dialers Supported SMS Survey Supported Telephony Supported Vanity Phone Number Supported Workforce Optimization (WFO) Supported	Categories Business Phone Systems Supported
Business Phone Systems Features Call Logging Supported Call Monitoring Supported Call Recording Supported Call Routing Supported Employee Directory Supported IVR / Voice Recognition Not Supported Mobile Access Supported Virtual Call Center Supported Web Conferencing Supported Show More Features Call Center Features Blended Call Center Not Supported Call Logging Not Supported Call Recording Supported Call Scripting Not Supported Campaign Management Supported Database Not Supported Escalation Management Not Supported Inbound Call Center Supported IVR / Voice Recognition Supported Manual Dialer Not Supported Outbound Call Center Supported Predictive Dialer Supported Progressive Dialer Supported Queue Management Supported Real-time Chat Supported Reporting/Analytics Supported SMS Survey Features Alerts / Notifications Not Supported Analytics / Reporting Not Supported Audience Targeting Supported Campaign Management Supported Contact Management Not Supported Customizable Templates Not Supported Keyword Tracking Not Supported Mass Texting Supported Message Personalization Supported MMS Supported Scheduled Messaging Supported Survey Builder Not Supported Template Management Not Supported Telephony Features Auto-Dialer Supported Call Center Management Supported Call Monitoring Supported Contact Management Supported Inbound Reporting Supported IVR / Voice Recognition Supported Outbound Reporting Supported Predictive Dialer Supported Telemarketing Management Supported Voice & Data Integration Supported VoIP Supported Workforce Optimization (WFO) Features eLearning Not Supported Interaction Analytics Not Supported Liability Recording Not Supported Performance Management Not Supported Quality Management Not Supported Real-time Guidance Supported Reporting Supported Speech Analytics Supported Surveying Supported Workforce Management Not Supported
Integrations ActiveCampaign Supported Agile CRM Supported Easyflow Supported Freshsales Supported Google Contacts Supported Helpwise Supported HubSpot Customer Platform Supported Kommo Supported Less Annoying CRM Supported LogixOne Supported Ontraport Supported Outreach Supported Pronnel Supported Salesforce Supported Shift Supported Truto Supported Zapier Supported Zendesk Supported Zoho Desk Supported iSales CRM Supported Show More Integrations View All 63 Integrations	Integrations ActiveCampaign Not Supported Agile CRM Not Supported Easyflow Not Supported Freshsales Not Supported Google Contacts Not Supported Helpwise Not Supported HubSpot Customer Platform Not Supported Kommo Not Supported Less Annoying CRM Not Supported LogixOne Not Supported Ontraport Not Supported Outreach Not Supported Pronnel Not Supported Salesforce Not Supported Shift Not Supported Truto Not Supported Zapier Not Supported Zendesk Not Supported Zoho Desk Not Supported iSales CRM Not Supported Show More Integrations
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