Avaya one-X [EOL] vs Cisco Unified Communications comparison

Why PeerSpot?

Avaya and Cisco are both solutions in the Unified Communications category. Additionally, 100% of Avaya users are willing to recommend the solution, compared to 100% of Cisco users who would recommend it.

Avaya one-X [EOL]

Read 1 Avaya one-X [EOL] review

100% willing to recommend

Cisco Unified Communications

Read 9 Cisco Unified Communications reviews

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1,464 Comparison Views

100% willing to recommend

Avaya one-X [EOL]

Cisco Unified Communications

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Executive Summary

We performed a comparison between Avaya one-X [EOL] and Cisco Unified Communications based on real PeerSpot user reviews.

Find out what your peers are saying about Cisco, 3CX, Digium and others in Unified Communications.

To learn more, read our detailed Unified Communications Report (Updated: October 2026).

Buyer's Guide

Unified Communications

October 2026

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Helped 917,433 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Avaya one-X [EOL]

Average Rating

8.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Cisco Unified Communications

Average Rating

8.4

Number of Reviews

Ranking in other categories

Unified Communications (1st), IP Telephony & Unified Communications (1st)

Featured Reviews

Kari Flor

Manager, Telecommunications at Gyrus ACMI - Olympus

Allows users to be on the move and still provide them with the ability to answer their desk phone

one-X Communicator (aka softphone on computer) has enabled employees to work from anywhere, and have their desk phone with them, as long as they have a headset. We also use one-X Mobile for tech support and sales force employees one-X Communicator and one-X Mobile applications have assisted the…

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reviewer1194252

Head of Sales & Solution Sales - MEA at a tech vendor with 10,001+ employees

Has supported collaboration across distributed teams and continues to deliver reliable communication features

Currently, all future propositions for UC are not Cisco-based. Easy integration with Microsoft Windows would be beneficial. It integrates with SharePoint and Outlook, which was not available at one point in Cisco Webex. Regarding improvements, the focus should be on how cloud-friendly Cisco Unified Communications products are and how technically and commercially simple they are compared to competitors such as Genesys. All features are present. The concerns lie in the ease of using features, pricing, and whether it is available directly on the cloud or requires going through a Cisco channel partner. Features themselves are not an issue, and Cisco can develop new ones quickly if needed. If current customers are using Cisco Unified Communications and enjoying its features with devices that are not end of life or end of sale, they will continue using it. However, when moving to the cloud, comparisons become necessary. The simplicity, customer journey, transformation journey, and architecture complexity define whether Cisco Unified Communications is the right product or if third-party solutions are more suitable.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"one-X Communicator and one-X Mobile applications have assisted the organization in receiving higher work/life balance scores by enabling employees to work from home, office and avoiding long commutes."

"Cisco Unified Communications is stable and works well for us."

"I have work on Cisco Unified Communication Manager (Call Manager) for one and a half years and it is a remarkable device which provides fully integrated communications, converging voice, video, and data over a single network infrastructure using standard protocols."

"The best feature I would say about Cisco Unified Communications is the Telepresence."

"Cisco supports third-party gadgets, including workforce management systems."

"Having a single system including the routers and switches all from the same system gives ease of use."

"The Click to dial feature was one of the most important features for the customer."

"It is very reliable, and this is what I appreciated about it when I was working with it because reliability is crucial."

"We use Extension Mobility and Jabber a lot with mobile remote access. In addition to video calls with Jabber, this greatly enriched communications between coworkers."

More Cisco Unified Communications pros

Cons

"One-X Mobile employees don't like that when they make a call from their mobile device using the app, the system calls them back before actually placing the call, they would like the call to just go out."

"Currently, all future propositions for UC are not Cisco-based."

"Sometimes, minor temporary issues can arise while updating the servers."

"Licensing can be an unbelievable mess."

"An improvement option could be to incorporate the Voicea solution with Communication Manager, allowing it to make a translation between different languages automatically in a conversation."

"Some features take a lot of steps to configure, so having areas where a few clicks can configure a feature for a user would be nice."

"I want to see improvements, especially for the GUI interface, as it should be much easier and user-friendly in Cisco Unified Communications."

"One of the major flaws in the unified CM is handling the configuration of the Voice mail port."

"To have 2 call management server configured as failover would be expensive."

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917,433 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

No data available

Comms Service Provider

14%

Manufacturing Company

13%

Government

Educational Organization

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	5
Midsize Enterprise	2
Large Enterprise	3

Questions from the Community

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What needs improvement with Cisco Unified Communications?

I want to see improvements, especially for the GUI interface, as it should be much easier and user-friendly in Cisco Unified Communications. It would be beneficial if it could be more web interface...

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What is your primary use case for Cisco Unified Communications?

We use this only for communication purposes, which includes a few use cases for it. We haven't used the video calls and other features because we based our use on basic communication, so I cannot g...

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What is your experience regarding pricing and costs for Cisco Unified Communications?

Regarding price and value, it is already expired and has reached end of life.

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Comparisons

No data available

Spectrum Enterprise vs Cisco Unified Communications

Compared 18% of the time

Fortinet FortiVoice vs Cisco Unified Communications

Compared 7% of the time

Mitel Communications Director vs Cisco Unified Communications

Compared 7% of the time

Digium Asterisk vs Cisco Unified Communications

Compared 6% of the time

Digium Switchvox vs Cisco Unified Communications

Compared 6% of the time

More Cisco Unified Communications Competitors

Product Reports

Buyer's Guide

Unified Communications

October 2026

Download Avaya one-X [EOL] product report

Buyer's Guide

Cisco Unified Communications

October 2026

Download Cisco Unified Communications product report

Also Known As

one-X

No data available

Overview

Avaya one-X Portal is a web-based unified communications client that consolidates access to critical voice applications in a simple consistent interface. Avaya one-X Portal is implemented and managed centrally and does not require software to be installed on user PCs. It brings together control of telephony (Avaya Aura Communication Manager), conferencing (Avaya Meeting Exchange Enterprise), and messaging (Avaya Modular Messaging with the Avaya Message Storage Server).

Avaya

Cisco Unified Communications enables seamless integration with business applications for effective communication, catering to up to 80,000 users with a focus on interoperability and user-friendliness.

Cisco Unified Communications integrates Active Directory and Outlook for seamless communication, offering scalability for large enterprises. It facilitates video, IM, and remote access through Jabber, ensuring secure, reliable communication with centralized management and third-party integration. While its system is robust, users seek improvements in GUI and web interface, along with better cloud accessibility and feature ease compared to competitors.

What are the key features of Cisco Unified Communications?

Active Directory Integration: Simplifies directory access for efficient communication.
Outlook Voicemail Integration: Streamlines voicemail management directly from Outlook.
Scalable Up to 80,000 Users: Supports enterprise growth without communication hindrance.
Jabber Video and Remote Access: Enhances connectivity with comprehensive communication tools.
Third-Party Integrations: Ensures flexibility and adaptability with external systems.
Speech Recognition: Facilitates hands-free operation and improved accessibility.

What benefits should users expect from reviews?

Cost-Effectiveness: Delivers communication solutions that align with budget constraints.
Reliability: Offers dependable service minimizing disruptions in critical communication.
User-Friendly: Simplifies operation with intuitive interfaces for non-technical staff.
Interoperability: Ensures compatibility with diverse systems enhancing user experience.

In industries such as call centers and corporate environments, Cisco Unified Communications is integral for managing calls, integrating Active Directory, and PSTN connectivity via SIP trunk, supporting IP telephony, audio conferencing, and corporate voice strategies, ensuring robust and efficient communication systems. Organizations customize usage from basic communication to advanced call center capabilities, depending on operational needs.

Cisco

Sample Customers

Arkadin, Linamar, Sochi 2014 Olympic Winter Games, Tata Technologies, Madison County Schools, I.R.I.S. Group, Zahlke, Alliance Inc., TransDiesel, Sun Life Financial

Afni, Allied Irish Banks, Bellevue, Came Group, Children's Hospital Colorado, Erickson Living, IDEALondon, Instituto Zaldivar, John Lewis, Linz AG, London Hydro, Lone Star College System, Lone Star College System, Mondi Group, North West Redwater, Park Nicollet, Pentana Solutions Australia, Pilatus, Pirelli, Portugal Ministry, Presidio Inc., Republic Bank & Trust Company, Saipem, SickKids Foundation, Top Right Group, Vital Images

Buyer's Guide

Unified Communications

October 2026

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917,433 professionals have used our research since 2012.

See our list of best Unified Communications vendors and best IP Telephony & Unified Communications vendors.

We monitor all Unified Communications reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.