What users are saying about
15 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener noreferrer'>trScore algorithm: Learn more.</a>
Score 8.7 out of 100
11 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener noreferrer'>trScore algorithm: Learn more.</a>
Score 8.7 out of 100

Likelihood to Recommend

Digium Asterisk

Digium Asterisk is well suited for a city government as a communications solution for internal and external use. Other options like PBX are more expensive and hard to escalate. VoIP makes it easier to use the communications infrastructure instead that already exists rather than having to wire every phone when the solution is a digital or analog phone. In my city, government offices are not in the same place, which makes it harder to communicate everything together.
No photo available

Twilio Programmable Voice

Twilio is well-rounded for almost any company that doesn't require much in terms of voice automation (smart IVR, call center forwarding, etc). It can hold its own on as many phone numbers as you like, and the voice quality is very clear most of the time (some countries' destinations might experience issues such as light noise, just as with a normal landline). You can even develop a reasonably complex IVR platform with TwiML and PHP, but the maintenance on this case is your own, so you'll need to evaluate this option if you're running heavily automated interactions with your customers.
No photo available

Feature Rating Comparison

Cloud PBX

Digium Asterisk
9.6
Twilio Programmable Voice
Hosted PBX
Digium Asterisk
9.8
Twilio Programmable Voice
Multi-level Interactive Voice Response (IVR)
Digium Asterisk
9.8
Twilio Programmable Voice
User templates
Digium Asterisk
9.6
Twilio Programmable Voice
Call reports
Digium Asterisk
9.8
Twilio Programmable Voice
Directory of employee names
Digium Asterisk
8.8
Twilio Programmable Voice

Call Management

Digium Asterisk
8.7
Twilio Programmable Voice
Answering rules
Digium Asterisk
9.9
Twilio Programmable Voice
Call recording
Digium Asterisk
9.6
Twilio Programmable Voice
Call park
Digium Asterisk
9.5
Twilio Programmable Voice
Call screening
Digium Asterisk
6.9
Twilio Programmable Voice
Message alerts
Digium Asterisk
7.7
Twilio Programmable Voice

VoIP system collaboration

Digium Asterisk
9.2
Twilio Programmable Voice
Video conferencing
Digium Asterisk
10.0
Twilio Programmable Voice
Audio conferencing
Digium Asterisk
8.4
Twilio Programmable Voice

Mobile apps

Digium Asterisk
9.0
Twilio Programmable Voice
Mobile app for iOS
Digium Asterisk
9.0
Twilio Programmable Voice
Mobile app for Android
Digium Asterisk
9.0
Twilio Programmable Voice

Pros

Digium Asterisk

  • Call forwarding that I can trust stays on even if my phone "refreshes."
  • Ability to setup various call rules and save them to use as needed.
Lisa Burns profile photo

Twilio Programmable Voice

  • The "insights" feature is very useful when it comes to supporting our users. Both VoIP and Carrier insights give the ability to know what happened on a call
  • Twilio is very reliable as a dialer. We do not have downtime events often (maybe 1 per year for 10min).
  • Twilio has a team that can work with carriers to improve dialing for users where the carriers are not working well
No photo available

Cons

Digium Asterisk

  • Documentation is scarce, so you have to learn by trial and error.
  • Not cloud-based, and there's no mobile app.
  • The ability to email voicemail messages would be great.
Brian Duffy profile photo

Twilio Programmable Voice

  • Answering machine detection is the worst part of this product. The messages are cut off and do not wait until most machines start recording.
No photo available

Support

Digium Asterisk

Digium Asterisk 8.0
Based on 1 answer
I have asked in the not so recent past about having my phone updated with my saved Digium "favorites" list but it doesn't seem that this is possible
Lisa Burns profile photo

Twilio Programmable Voice

Twilio Programmable Voice 7.5
Based on 2 answers
For the most part, you don't need support if you understand how to read error handling, debugging, or sip messages.
No photo available

Alternatives Considered

Digium Asterisk

[Based on] my experience, we initially had to deal with Avaya PBXs, the same applies to client instrumentation (telephones, etc.). Surely we are talking about a product much more "business-like", but the management and implementation has a high cost and is not as simple as it can be (or better) with Asterisk.
Luca Campanelli profile photo

Twilio Programmable Voice

We previously used Skype for communications, however the price per minute or second per call was more expensive, and it didn't give us the flexibility of integrating calls with our CRM (Vtiger), allowing our sales force to initiate a call with a prospect just by clicking on its opportunity's phone number.
No photo available

Return on Investment

Digium Asterisk

  • being zero cost, we saved at least 3 million on what a legacy pbx would have cost
  • the savings and speed means lower cost on our service making us more competitive
  • stability
No photo available

Twilio Programmable Voice

  • Our customers are able to implement a large part of their sales initiative (calling) through us due to Twilio's product
  • Twilio takes a decent amount of support and knowledge gained over time. This is expensive in the long run.
No photo available

Pricing Details

Digium Asterisk

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

Twilio Programmable Voice

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

Rating Summary

Likelihood to Recommend

Digium Asterisk
8.3
Twilio Programmable Voice
8.7

Support

Digium Asterisk
8.0
Twilio Programmable Voice
7.5

Add comparison