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Compare Asterisk and Twilio Flex 
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At a Glance
Market Segments
Mid-Market (49.0% of reviews)
Small-Business (34.6% of reviews)
Entry-Level Pricing
$0.02 per minute
No pricing available
Asterisk
Star Rating
(58)4.6 out of 5
Market Segments
Mid-Market (49.0% of reviews)
Entry-Level Pricing
$0.02 per minute
Browse all 2 pricing plansTwilio Flex
Star Rating
(34)4.1 out of 5
Market Segments
Small-Business (34.6% of reviews)
Entry-Level Pricing
No pricing available
Learn more about Twilio FlexSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- Users report that Asterisk excels in call routing with a score of 9.4, allowing for efficient management of incoming calls, while Twilio Flex has a slightly lower score of 8.3 in this area, indicating that users may find Asterisk's routing capabilities more robust.
- Reviewers mention that Asterisk's conference calls feature is highly rated at 9.2, providing a seamless experience for users, whereas Twilio Flex's conference call functionality, while decent, does not receive the same level of praise, scoring only 8.0.
- G2 users highlight Asterisk's superior hold music feature, scoring 9.1, which enhances the caller experience during wait times, compared to Twilio Flex, which also offers hold music but does not stand out as much in user reviews.
- Users on G2 report that Asterisk's session recording capabilities are well-received, with a score of 8.3, providing valuable insights for performance evaluation, while Twilio Flex's session recording features are noted to be less comprehensive, leading to a lower user satisfaction score.
- Reviewers say that Asterisk's voicemail to email feature is particularly useful, allowing for easy access to messages, while Twilio Flex offers similar functionality but lacks the same level of user-friendly integration, resulting in a less favorable comparison.
- Users report that Asterisk's administrative access features are rated highly at 8.8, making it easier for managers to oversee operations, while Twilio Flex's administrative tools, although functional, do not provide the same level of ease, scoring 7.6.
Pricing
Entry-Level Pricing
Asterisk
Metered SIP Trunking
$0.02
per minute
Works well for businesses that may need more flexibility in their communications week to week.
- No set-up fees.
- Metered inbound and outbound local and long distance.
- Allows more dynamic call volume activity.
Twilio Flex
No pricing availableFree Trial
Asterisk
Free Trial is available
Twilio Flex
No trial information availableRatings
Meets Requirements
9.0
45
8.3
25
Ease of Use
7.7
46
8.2
25
Ease of Setup
7.5
36
7.2
9
Ease of Admin
7.9
34
7.5
8
Quality of Support
8.3
38
8.2
23
Has the product been a good partner in doing business?
8.3
27
8.6
7
Product Direction (% positive)
7.9
45
7.1
24
Features by Category
Channels
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
7.7
5
|
Verified
Not enough data
Not enough data
Not enough data
Not enough data
Generative AI
Not enough data
Not enough data
Functions
Not enough data
8.3
16
|
Verified
Not enough data
8.2
17
|
Verified
Not enough data
8.6
14
|
Verified
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
7.3
5
Not enough data
Not enough data
Agentic AI - Contact Center
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Administrative
Not enough data
8.2
15
|
Verified
Not enough data
8.6
11
|
Verified
Not enough data
8.1
16
|
Verified
Not enough data
Not enough data
Not enough data
6.0
5
|
Verified
Platform
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Generative AI
Not enough data
Not enough data
Workforce Management
Not enough data
Not enough data
Not enough data
Not enough data
Call Center Infrastructure (CCI)
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Administrative
Not enough data
Not enough data
Not enough data
Not enough data
Platform Basics - VoIP Providers
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Basic Communication
9.5
38
|
Verified
Not enough data
8.1
24
Not enough data
8.4
23
|
Verified
Not enough data
7.9
21
Not enough data
9.2
34
|
Verified
Not enough data
9.0
36
|
Verified
Not enough data
Agentic AI - VoIP Providers
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Access
7.9
25
Not enough data
7.9
23
|
Verified
Not enough data
7.9
24
Not enough data
Advanced Features
9.1
35
|
Verified
Not enough data
9.0
32
|
Verified
Not enough data
9.0
33
|
Verified
Not enough data
Agentic AI - UCaaS Platforms
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Extensions
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Features
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Categories
Categories
Shared Categories
Asterisk and Twilio Flex are categorized as VoIP Providers and UCaaS Platforms
Unique Categories
Asterisk has no unique categories
Twilio Flex is categorized as Call Center Infrastructure (CCI) and Contact Center
Reviews
Reviewers' Company Size
Asterisk
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Twilio Flex
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Telecommunications
29.4%
Information Technology and Services
21.6%
Computer Software
5.9%
Banking
5.9%
Facilities Services
3.9%
Other
33.3%
Insurance
19.2%
Information Technology and Services
19.2%
Transportation/Trucking/Railroad
7.7%
Consumer Services
7.7%
Computer Software
7.7%
Other
38.5%
Alternatives
Discussions
Asterisk has no discussions with answers
Twilio Flex has no discussions with answers
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