ASTPP

4.9 (16 Reviews)|Write a Review|Claimed profile
India HQFounded 2013

Deployment

Best for

SmallMediumLarge

Overview

About ASTPP

#1 Open Source VoIP Billing Solution

ASTPP has been empowering various VoIP businesses and service providers with its amazing Open Source VoIP solutions. It is regarded as one of the top VoIP billing solutions and the #1 open source FreeSWITCH-driven Class 4 and Class 5 Softswitch Solutions, which automates invoicing and billing processes completely.

ASTPP is one of few solutions that support the N-level reseller structure. It uses cutting edge technologies like FreeSWITCH and OpenSIPs as core technologies to provide the most robust, reliable, and scalable solutions.

ASTPP is a smart telephony platform, which has a suite of smart VoIP telephony solutions to offer to service providers and businesses, including, but not limited to

Features
Accounts Management
Tariff & Rates Management
Advanced Routing Strategies
SIP Trunking Management
DID Management
Invoicing and Billing
Realtime Call Billing
Free Minutes Bundles
Fraud Detection
Fax over IP

At a glance

Software information

Industries served, licensing and the support ASTPP provides.

Industries

  • Telecommunications

Licensing

  • Open Source
  • Monthly Payment
  • Annual Subscription
  • Quote Based
  • One-Time Payment
  • Free trial

Support

  • Email
  • Live Chat
  • Phone
  • 24x7 Support

Training

  • Webinar
  • In-person
  • Documentation
Languages (5)
EnglishFrenchGermanPortugueseSpanish

Review analytics

What customers report

4.9
Based on 16 verified reviews

What users like the most

  • The unwavering support
  • One of the standout features of ASTPP is its flexibility and scalability. Over the years, its ability to adapt to various billing models and support multiple tenants has been invaluable. The open-source nature of ASTPP is another highlight, as it allows for customizations that fit specific business needs. Additionally, the real-time billing and monitoring capabilities have made it easier to manage operations effectively. Its ongoing development and active community support have also been key in
  • Easy to use, great control and comprehensive

What users like the least

  • The billing feature
  • One of the standout features of ASTPP is its flexibility and scalability. Over the years, its ability to adapt to various billing models and support multiple tenants has been invaluable. The open-source nature of ASTPP is another highlight, as it allows for customizations that fit specific business needs. Additionally, the real-time billing and monitoring capabilities have made it easier to manage operations effectively. Its ongoing development and active community support have also been key in
  • Documentation not straight forward

What users say

Review Analytics of ASTPP

Every review is verified through Goodfirms before it's published.

4.916 Verified Reviews
Ease of use (6 reviews)4.6
Features & functionality (6 reviews)4.8
Customer support (6 reviews)4.8
Value for money (1 review)5.0
Integrations (1 review)5.0
Review Summary
Summarized from 16 verified reviews · Updated September 2026
ASTPP is a VoIP billing and softswitch platform widely used by wholesale providers and service providers since at least 2013. Users consistently praise its reliability, open-source flexibility for customization, and responsive technical support from iNextrix staff. Common strengths include comprehensive billing features, user-friendly interface, and willingness to tackle complex integrations and custom development. One recurring caveat is that the software has a steep learning curve for new users, though support teams help overcome initial adoption challenges.
✦ AI-generated summary. May not reflect every review.
Detailed Reviews of ASTPP
Sort ByWrite a Review

What reviewers mention most

Deon Du PlessisVerified Review
Posted on Jul 19, 2021

“Great Platform , low risk and high reward and service”

Overall rating5.0
We have utilised other vendor platforms over the years and ASTPP was a breeze to test via they free version for us to make a decision before moving over to the paid for platform. Since moving over ASTPP is great value for money and great support as well. We moved over to ASTPP in a high available solution that works great and their custom development assisted us with billing system integration. I would recommend ASTPP to anyone in the VISP and MISP industries.
brian masipaVerified Review
Posted on Jul 15, 2021

“Best VoIP Platform for Small Medium and Large Organization”

Overall rating5.0
The team has always been very helpful with all the issues we have faced through out all the versions I have worked on, from Version 3, 4 then version 5 and now running my organization is working on the Beta version 5. I can say this has been great because I have gained experience myself through out many years I have worked with this team. I always recommend the products to clients looking for their own platforms to go with ASTPP. I don't see myself giving another platform a chance now even going to give the iCallify: Intelligent Call Center Software a try because I know they will always provide good assistance whenever I will come across any issues.
Sidney McGeerVerified Review
Posted on Jul 8, 2021

“Very helpful and competent support”

Overall rating5.0
ASTPP offers a great and well put together piece of software. What sets them apart however is the support and guidance that comes with the licenced version and various monthly support packages they have to offer. In my opinion, these are reasonably priced and comprehensive enough to support even the largest of deployments. I would highly recommend checking out their offering and spending some time with their sales staff discussing your needs. They are more than willing to help!
David MorrisVerified Review
Posted on May 19, 2021

“Great software for wholesale voice termination”

Overall rating5.0
ASTPP has been our switch of choice for wholesale voice termination since 2013 – 8 years is a lifetime in this industry!

Over the years we have seen customers and suppliers change their switch chasing features, however the open-source model for ASTPP allowed direct code changes to add features straight into the switch.

iNextrix/ASTPP team have been very supportive of customers adjusting the code themselves if the customer has the ability to do this, which we have done.
We've also used commercial support packages from iNextrix which saved our own coders time and allowed us to quickly leapfrog wholesale voice competitors with features not available on other switches.
iNextrix have built a truly open system in ASTPP and it's nice to be able to add small features ourselves or have the option of having the team program them for us.

We have run a single instance of ASTPP running on a single server for many hundreds of concurrent calls.

I can whole heartedly recommend ASTPP for commercial wholesale voip
Yaniv PartoucheVerified Review
Posted on May 12, 2021

“Best provider software ever in the domain of VOIP”

Overall rating5.0
We encounter issue with one of our provider. The Inextrix team worked on it without stop until they finally find the issue. The issue was from my dialer server but they also fix it even if it's not their software related directly, it's very rare today to see such professional works. They doing everything for their clients have the best solution to have a softswitch working simple and good to look also. We coming from other provider and i can tell you my old softswitch provider is far away from Inextrix in a lot of domain, support, understanding of client needs, debugging etc...
Really for every company than want to start in the world of VoIP or companies that want to change their switch I can only advise you to go without think a sec with Inextrix they will never let you down until they find a solution whatever your request or bug and i think it's the most important for every one.
Tulga GandavaaVerified Review
Posted on May 5, 2021

“Good team”

Overall rating5.0
We needed to connect our in-house RTC technology to the FreeSwitch servers. In order to complete this integration with the payment system, engineers from Mongolia, China and India talked online and completed it quickly and efficiently. We started working together because the iNextrix staff was very skilled and connected during integration and installation phase. We are glad to meet and cooperate with iNextrix team with high knowledge of VoIP technology and billing.

Capabilities

ASTPP features

The full feature set, grouped by module.

Billing and Invoicing Software

  • Billing Portal
  • Contingency Billing
  • Customer Database
  • Customizable Invoices
  • Dunning Management
  • Hourly Billing
  • Mobile Payments
  • Multi-Currency
  • Online Invoicing
  • Online Payments
  • Project Billing
  • Tax Calculator
  • Templates

VoIP Software

  • Call Parking
  • Call Recording
  • Call Routing
  • Contact Management
  • Encryption
  • Interactive Voice Response
  • Messaging
  • SIP Trunking
  • Unified Communications
  • Voice Quality Enhancement

Telephony Software

  • Call Center Management
  • Call Monitoring
  • Contact Management
  • IVR/Voice Recognition
  • Telemarketing Management
  • Voice & Data Integration
  • VoIP

Plans

ASTPP pricing

Free Version
Yes
Payment Frequency
Monthly Payment, Annual Subscription, Quote Based, One-Time Payment
Preferred Currency
USD ($)
Free Trial
14 Days
In Community Edition For individuals and businesses seeking for free version Access to community addons Limited features In Enterprise Edition For small to large enterprises seeking for enterprise-grade solution All of community edition Advance features Access to enterprise addons Unlimited support Unlimited upgrades No limit on data records Talk to a product specialist about features, deployment, support plans, and consulting.

Works with

Integrations

ASTPP connects with the tools your team already uses.

Media

Screenshots & video