Avaya Cloud Office vs. SIPSTACK Comparison


Avaya Cloud Office Avaya	SIPSTACK	+	+
Learn More Update Features	Learn More Update Features	Add To Compare	Add To Compare


		Related Products net2phone net2phone is an AI-powered business communication platform for companies serious about customer experience. Trusted by 500,000+ users and backed by 30+ years of experience, net2phone eliminates the friction of scattered channels and disconnected tools, so every conversation drives retention and growth. Unite unifies voice, messaging, video, and chat in one place, with call recording, sentiment analysis, and AI-generated follow-ups. AI Agent automates customer inquiries and workflows across phone and chat in 30+ languages, handing off to humans when needed. Coach AI reviews 100% of interactions to guide agent performance. uContact gives high-volume teams omnichannel routing and real-time dashboards. Every solution integrates with the tools you already use and runs on enterprise-grade security. Beyond software, net2phone provides expert guidance at every step, from setup to integration to ongoing optimization, so your technology delivers measurable results. 197 Ratings Visit Website ULTATEL Ultatel stands at the forefront of business communications, empowering organizations with cutting-edge cloud VoIP technology to boost productivity and stay connected with customers anywhere, anytime. Our plans come fully scalable, featuring unlimited HD Voice, SMS, Fax, Chat, Video, and over 40 advanced features and integrations. Experience true transparency with our no-hidden-fees pricing model—what you see is exactly what you pay! Recognized as a Gartner Category Leader and G2 High Performer, Ultatel offers a unified communications platform that evolves with your business. Powered by our innovative FlexScale technology, you can effortlessly adjust your communication needs without any downtime or penalties. Our Award-Winning Customer Support team is here for you 24/7/365, delivering a remarkable 94% first-contact resolution rate. With Ultatel, enjoy the peace of mind that comes with being connected beyond limits. 115 Ratings Visit Website Yeastar P-Series PBX System Focusing on delivering "Easy-first Unified Communications", Yeastar P-Series Phone System offers companies of all sizes with a complete package for calls, video, messaging, and integrations, out of the box. With in-built visual call management, integrated video conferencing, advanced contact center features, and ready-made SMS, WhatsApp, Microsoft Teams, CRMs, and more platform integrations, P-Series boosts productivity at all levels and provides everything across desktop, mobile, and browser with simple user apps. Available in the Appliance, Software, and Cloud Editions, P-Series provides flexible deployment options, allowing you to have it sited on-premises or in the cloud. Balancing costs and future growth, it requires a lower total cost of ownership, less training, and fewer management efforts. The ease of use and future-proof adaptability are paramount. 116 Ratings Visit Website PBXware PBXware is the world’s first and most mature IP PBX Professional Open Standards Turnkey Telephony Platform. Since 2004, PBXware has deployed flexible, reliable, and scalable Next Generation Communication Systems and VoIP solutions to Small and Medium sized Businesses (SMBs), enterprises, Internet Telephony Service Providers (ITSPs), Call Centers and governments worldwide by combining the most advanced of the latest technologies. Bicom Systems’ softswitch is offered in Business, Contact Center and Multi-Tenant Editions, each supporting specific features maximizing performance, reliability, and expandability. 39 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 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 3CX 3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box. Suitable for any business size or industry 3CX can accommodate every need; from mobility and status to advanced contact center features and more, at a fraction of the cost. Ideal for companies working remotely, 3CX includes mobile apps, video conferencing and website live chat. Installation, management and maintenance of the PBX is so easy that you can effortlessly manage it yourself, whether on an appliance or server at your premise on Windows, Linux or in the cloud. Alternatively you can choose to have it hosted by 3CX for a completely hassle-free solution. 1,237 Ratings Visit Website 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 Community Phone Calling made modern. Your business number. Your employees' phones. Our amazing features. A dial menu spoken by our voice actors. Callers press numbers to make purchases, hear MP3s, connect to specific staff, and more. Make and answer calls using your number on multiple phones without the caller ever knowing. Employees hear secret in-house menus, transfer calls, and send voicemails to their email, all from their dialpad. These business features require no new software or hardware. Your dialpad come to life. Porting your business or personal number at the press of a button. Select from our menu of modern voice features for your business or personal line. We'll activate these features on your current phone for you. No work (or learning) required from you. We'll be here to transform your number whenever your desires change. 1,597 Ratings Visit Website Signalmash Signalmash is a boutique CPaaS built for businesses that need reliable communications and real human support behind every interaction. No tiers. No wait times. Real support for faster development and better outcomes for your customers. Our enterprise-grade customer gets a dedicated Slack channel with our engineers. Direct Tier-1 connections with AT&T, Verizon & T-Mobile. 94% first-time 10DLC approval rate. SMS: 10DLC \| Short code \| Toll-free \| SimplyRCS (simplyrcs.ai): RCS Rich \| RCS Media through API & No-Code Platform Voice: SIP Trunking \| VoIP \| Termination \| Origination Numbers/DIDs: Local, short code & toll-free numbers \| BCID (Branded Caller ID) Number Intelligence/Lookup: Subscriber Info (CNAM) \| Carrier Information \| Carrier Type (Fixed or Wireless) \| Federal DNC Status Signalmash enterprise-grade reliability, boutique-level support. 16 Ratings Visit Website
About Avaya Cloud Office is a cloud-based unified communications solution that combines voice, video, messaging, meetings, and collaboration tools into a single platform. It seamlessly connects office, remote, and mobile workers across multiple devices, ensuring smooth and consistent communication. With features like business phone numbers, voicemail transcription, team messaging, and document sharing, it enhances productivity and collaboration. The platform also prioritizes security with encryption and integrates with over 100 business applications, including Salesforce, Office 365, and G Suite, helping businesses streamline workflows and improve efficiency.	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 Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not 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 Businesses looking to communicate easily with team no matter where everyone is at.	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 Not Supported 24/7 Live Support Not 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 $19.99/user/month 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 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	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

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported
Company Information Avaya Founded: 2000 United States www.avaya.com/en/products/ucaas/cloud-office/	Company Information SIPSTACK Founded: 2016 Canada sipstack.com
Alternatives AtcomCloud Atcom	Alternatives D Line DaVinci Tech Solutions
PortaSwitch PortaOne	VoiceShot
UNIVERGE BLUE NEC Corporation	Frontier SmartVoice Frontier Communications
8x8 Work 8x8	Votelly
Dialpad Connect Dialpad View All	CaberTel View All
Categories Business Phone Systems Supported Business VoIP Supported Cloud PBX Supported UCaaS Supported Unified Communications Supported	Categories Business Phone Systems Supported
Show More Features Unified Communications Features Audio / Video Conferencing Supported Calendar Management Not Supported Call Recording Not Supported Call Routing Not Supported Chat / Messaging Supported Fax Management Not Supported File Sharing Not Supported Mobile Access Supported Multi-User Collaboration Supported Voice Mail Not Supported
Integrations Avaya one-X Communicator Supported Azure Marketplace Supported Check Point IPS Supported Check Point Infinity Supported Clobba Supported Coeo Supported Flip Supported Geomant Supported Google Drive Supported HindSight Supported Kasisto KAI Supported NETGEAR Insight Supported New Era Supported Outdoo AI Supported Salesforce Supported SecHard Supported Soft-ex Supported ValidSoft Supported WIZ AI Talkbots Supported Zuro Supported Show More Integrations View All 49 Integrations	Integrations Avaya one-X Communicator Not Supported Azure Marketplace Not Supported Check Point IPS Not Supported Check Point Infinity Not Supported Clobba Not Supported Coeo Not Supported Flip Not Supported Geomant Not Supported Google Drive Not Supported HindSight Not Supported Kasisto KAI Not Supported NETGEAR Insight Not Supported New Era Not Supported Outdoo AI Not Supported Salesforce Not Supported SecHard Not Supported Soft-ex Not Supported ValidSoft Not Supported WIZ AI Talkbots Not Supported Zuro Not Supported Show More Integrations
Claim Avaya Cloud Office and update features and information Claim Avaya Cloud Office and update features and information	Claim SIPSTACK and update features and information Claim SIPSTACK and update features and information