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Digium Asterisk vs NEC UNIVERGE Sphericall comparison

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Comparison Buyer's Guide

Executive Summary

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

Digium Asterisk
Ranking in Unified Communications
3rd
Ranking in IP Telephony & Unified Communications
2nd
Average Rating
8.0
Number of Reviews
5
Ranking in other categories
No ranking in other categories
NEC UNIVERGE Sphericall
Ranking in Unified Communications
11th
Ranking in IP Telephony & Unified Communications
8th
Average Rating
0.0
Number of Reviews
1
Ranking in other categories
Mobile Communication Gateways (2nd)
 

Mindshare comparison

As of October 2026, in the Unified Communications category, the mindshare of Digium Asterisk is 7.5%, down from 8.5% compared to the previous year. The mindshare of NEC UNIVERGE Sphericall is 3.2%, up from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Unified Communications Mindshare Distribution
ProductMindshare (%)
Digium Asterisk7.5%
NEC UNIVERGE Sphericall3.2%
Other89.3%
Unified Communications
 

Featured Reviews

AK
Technical Lead at a marketing services firm with 11-50 employees
Call recording, call logging, and the stability are pivotal features for our clients
We mainly replace old telephony equipment. If, for instance, there is an old Alcatel telephone system (digital or analog), and the customer asks us for a new option for IP telephony, then we offer both the Cisco- and Asterisk-based systems. We know the billing, we know the pricing of the items and what we can offer with both solutions. There are multiple factors involved when selecting a vendor * stability * support * features. If the product is stable, the product has good support, and it has enough features which we can offer to our clients, then the product is under our consideration.
it_user422535 - PeerSpot reviewer
Co-Founder at a comms service provider with 501-1,000 employees
The capability of becoming a Web Collaboration Platform by simply adding a server and licenses empowers companies.
Staff for administering Univerge 3C are telecomms specialist, but the person who administrates Active Directory could be the one as it´s a platform that is fully software based. We have customers who started up with the product running v2 over ATM and are now based on SWA (Software Assurance) they have been migrating to the latest versions of the software, replacing some gateways from ATM to ethernet, however I believe there is no need to drop their investment. Another great feature is the unique User Centric Capability that allows IT administrator full control of the users based on their Microsoft AD credentials independently of their multiple devices (Deskphone; Smart Phone; Tablet and/or PC/Laptop). Finally, the capability of becoming a Web Collaboration Platform by simply adding a server and licenses empowers companies with the option to access to great tools for collaboration and stop spending a lot of money in travelling, training, etc.

Quotes from Members

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

Pros

"Highly customizable for customer needs"
"With the passage of time I am sure that these cons will be solved, particularly because it has added a lot savings for communication needs."
"The most valuable features are call recording, call logging, and the stability."
"If the client requires an economical solution with many features, we can offer them Digium Asterisk, where there is no licensing, and it is a good, economical solution."
"Best Telecommunication solution in the world."
"It is as robust and stable from a few phones in one location to thousands of phones over hundreds of locations."
"Another great feature is the unique User Centric Capability that allows IT administrator full control of the users based on their Microsoft AD credentials independently of their multiple devices (Deskphone; Smart Phone; Tablet and/or PC/Laptop)."
 

Cons

"Difficult to configure and maintain."
"The asterisk VoIP has a delay of about 400 milliseconds."
"CTI, computer telephony integration, is a necessary component. It must be a part of the basic code. Currently, we need to use external connectors for call centers."
"Customer Service: This was a weakness in the past, and it took a few years from the acquisition of the product until now for it to become a core IP solution."
 

Pricing and Cost Advice

"If the client requires an economical solution with many features, we can offer them Digium Asterisk, where there is no licensing. It is a good, economical solution."
Information not available
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Top Industries

By visitors reading reviews
Outsourcing Company
19%
Healthcare Company
13%
Manufacturing Company
9%
Construction Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Also Known As

Asterisk
UNIVERGE Sphericall
 

Overview

 

Sample Customers

Yahoo, Penn Univeristy of Pennsylvania, US Army, Google, eBay
The Peninsula Shanghai, Voorhees College, Keller Williams Realty, Curve
Find out what your peers are saying about Cisco, 3CX, Digium and others in Unified Communications. Updated: October 2026.
917,403 professionals have used our research since 2012.