Asterisk is an open source toolkit for building communications applications, now owned and supported by Sangoma (acquired with Digium in 2018). Most Asterisk-based systems and solutions require additional components (e.g. IP-phones, VoIP gateways or telephony interface cards, and other hardware), and expertise.
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Twilio
Score 7.0 out of 10
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Twilio offers a CPaaS and CCaaS solution, with the combination of its programmable Voice, Video, and Messaging APIs, as well as the Twilio Flex cloud contact center. Additional capabilities include Twilio's Elastic SIP Trunking, as well as API for WhatsApp.
$0
per min per participant
Pricing
Sangoma Asterisk
Twilio
Editions & Modules
No answers on this topic
Programmable Video
$0.0015
per min per participant
WhatsApp Business API
$0.0042
Per WhatsApp Template message sent
WhatsApp Business API
$0.005
Per WhatsApp session message
Elastic SIP Trunking
$0.007
Per min for termination
Programmable Messaging
$0.0075
per message sent or received
Programmable Voice
$0.0085
per minute to receive a call
Programmable Voice
$0.013
per min to make a call
Elastic SIP Trunking
$0.045
Per min for origination
Twilio Conversations
$0.05
per active user per month
Twilio Authy
$0.09
per authentication
Programmable Wireless
$0.1
per MB
Twilio Flex (Contact Center)
$1
per active user hour (5000 hours free)
Programmable Wireless
$2.00
per SIM card
Twilio SendGrid Email API
$14.95
per month up to 100k emails. (Up to 40k emails free for 30 days)
Twilio SendGrid Marketing Campaigns
$15
per month for 5,000 contacts and 15,000 emails. Your first 2,000 contacts are free
Twilio Flex (Contact Center)
$150
per named user per month (5000 hours free)
Offerings
Pricing Offerings
Sangoma Asterisk
Twilio
Free Trial
No
Yes
Free/Freemium Version
No
Yes
Premium Consulting/Integration Services
No
No
Entry-level Setup Fee
No setup fee
Optional
Additional Details
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1. Pay-as-you-go pricing: Simple usage-based pricing means you don’t get locked into big contracts.
2. Volume discounts: Discounts trigger as your usage grows, so you always get a fair price.
3. Start building today with free trial credit and full API access.
As I stated before this is very user friendly. It makes it so just about anyone with basic knowledge of technology can use it. There is always room for improvement but this is by far the easiest program to use for phone systems that I have used in my 8+ years at my current job.
Twilio is well suited to sending SMS reminders to prospects on the lead-up to sales appointments. This has helped us improve attendance rates for these meetings. We also use Twilio to communicate with these prospects post-meeting to make offers on products and services and for feedback on their meeting.
Authy does not support the "push button" multi-factor authentication from your application's native apps. This means if you want to use Authy, you still need to use TOTP based codes.
Not really a shortcoming of Authy, but it does nothing to help with multi-factor authentication using text messages - those are still sent to your platform's messaging app.
Authy doesn't always display how much time is left before your current token expires, making it difficult to know how much time you have left to enter the current code.
We are happy with Twilio because the price per message is low. The API is not difficult to implement and the documentation is very complete. Twilio as a company keeps you well informed of issues that happen. They also offer free online workshops or conferences to make notices of new laws, etc.
Overall the product API is extremely well documented so it is very easy to build a product with their technology. The website is a little bit cumbersome to use as they have greatly expanded the number of products that they have over the years, but the dashboard UI has not been improved much since.
The problem tends to be us, the user, rather than Twilio. We don't reach out to support fast enough (spend time struggling), but when we have, they've solved our issue immediately. We are rural, so there are signal issues to accommodate, however, we find that a few staff on a few cellular networks can triangulate where we all have signal to put up a sign.
Good interface to connect with different API systems for communication through different channel[s]. Twilio has good market coverage of the client across the globe for generating revenue through multi-channel approach. It works with [a] programmable feature that makes life easy for every user. Automated call is one of the advance[d] feature[s] of this tool.
I have used many other systems such as Cisco Call Manager, Avaya Communication Manager, NortelMeridian, small Panasonic PBX. All of them are proprietary and more expensive in both hardware and software. Digium Asterisk stacks up against them because the price of the hardware and software is lower and very intuitive.
We have looked at some of Twilio competitors, like Infobip, Sich and Bandwith. Prices on all of them for voice minutes and SMS are way cheaper than Twilio. But none of them seem to offer as many features and ease of use as Twilio. Specially from an API point of view
We found that associates who had the opportunity to respond to a survey about their assigned job were 37% more likely to return to a job site
We were able to reduce the number of resources required to manually respond to associates using Twilio Studio, so those resources could have more time to complete other tasks
We were able to scale the number of associates who received survey messages at least by a factor of 8 without increasing our resource demand
