Cisco Unified Communications vs ShoreTel Sky [EOL] comparison

Cisco and Mitel are both solutions in the Unified Communications category. Additionally, 100% of Cisco users are willing to recommend the solution, compared to 80% of Mitel users who would recommend it.

Cisco Unified Communications

Read 9 Cisco Unified Communications reviews

1,112 Views
734 Comparison Views

100% willing to recommend

ShoreTel Sky [EOL]

Read 7 ShoreTel Sky [EOL] reviews

80% willing to recommend

Cisco Unified Communications

ShoreTel Sky [EOL]

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between Cisco Unified Communications and ShoreTel Sky [EOL] 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: March 2026).

Buyer's Guide

Unified Communications

March 2026

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Helped 884,933 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

Cisco Unified Communications

Average Rating

8.4

Number of Reviews

Ranking in other categories

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

ShoreTel Sky [EOL]

Average Rating

7.8

Reviews Sentiment

4.5

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

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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it_user269988

Office Manager with 51-200 employees

The Service Portal is useful feature, but there are occasional outages.

Phone Assistant is very useful, as is the Service Portal Occasional outages, but they're usually resolved very quickly. Customer Service: Customer service is generally responsive and courteous. Technical Support: Technical support folks are generally knowledgeable and helpful. We moved to VoIP…

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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

"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."

"Technical Support: Cisco TAC is the very best support I have seen from any company I have ever had to work with."

"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."

"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."

"Using the Communication Manager, it gave us the possibility to move around the office, and even outside the office, keeping our phone number always accessible using Jabber."

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

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

"With the reporting available from Shoretel we were able to adjust our staff scheduling and decrease average hold times from 60 seconds to 30 seconds."

"The Portal administrator tool is very easy to navigate and understand; this has to be my favorite feature."

"We have 15 branches that are now connected as though we are housed in the same building."

"Using Shortel sky has been great for our company."

"We rely on using ShoreTel's Phone Assistant as an integral part of our company and how it functions."

"We moved to VoIP a little over five years ago, after having a traditional POTS system, and it was a great improvement in terms of capability and service."

"Allows us to work interactively through different locations."

Cons

"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."

"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."

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

"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."

"Licensing can be an unbelievable mess."

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

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

"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."

"Perhaps allowing more control over user functions from the customer portal, otherwise the solution is a good fit."

"Some intermittent connectivity issues are inherent with VOIP systems."

"Occasional outages, but they're usually resolved very quickly."

"The experience does not feel "Unified." With the recent acquisition of M5 they acquired a bunch of new features, but have not been able to make all UC features available from one website or one program."

"The portal is very good, but could use more function and streamline, especially in the call flow section."

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Top Industries

By visitors reading reviews

Manufacturing Company

15%

Government

12%

Educational Organization

11%

Computer Software Company

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

By reviewers
Company Size	Count
Small Business	6
Large Enterprise	1

Questions from the Community

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

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Compared 25% of the time

Fortinet FortiVoice vs Cisco Unified Communications

Compared 9% of the time

Ribbon Enterprise Media Gateways vs Cisco Unified Communications

Compared 7% of the time

Alcatel-Lucent OmniPCX Enterprise Communication Server vs Cisco Unified Communications

Compared 7% of the time

NEC UNIVERGE Sphericall vs Cisco Unified Communications

Compared 6% of the time

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Digium Asterisk vs ShoreTel Sky [EOL]

Compared 51% of the time

Vertical Solutions Wave IP vs ShoreTel Sky [EOL]

Compared 49% of the time

More ShoreTel Sky [EOL] Competitors

Product Reports

Buyer's Guide

Cisco Unified Communications

March 2026

Download Cisco Unified Communications product report

Buyer's Guide

Unified Communications

March 2026

Download ShoreTel Sky [EOL] product report

Overview

With Cisco Voice and Unified Communications, you can unify all your voice, video, data, and mobile applications for interactive collaboration.

Cisco

ShoreTel Sky have some useful features: ShoreTel Sky Communicator turns conference calls into active web sharing with video, presentation mode and more. ShoreTel Sky Mobility keeps you connected with deskphone features and functionality everywhere. ShoreTel Sky Advanced Application integrations amplify and enhance CRM and ERP functionality and ShoreTel Sky Contact Center improves the quality and quantity of profitable customer contacts.

Mitel

Sample Customers

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

Abacus Service Corporation, AIPAC, Airlie Womens Clinic, All Erection Crane And Rental Corporation, Aquent, Aspire, Bonobos, Brooklyn Brewery, Cable Scope, Caduceus

Buyer's Guide

Unified Communications

March 2026

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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.