Free Cloud IP-PBX - implementation from ppbbxx.com

Hi, Habr!
Today we want to talk about our new development ppbbxx.com . This is a cloudy IP-PBX service with a focus on flexibility and reliability, which should provide our users with the capabilities typically found in traditional solutions.
For details, welcome under cat.


At the first stage of development, it was decided to concentrate on the service architecture, to lay a great potential for development, to provide the possibility of horizontal scaling, to take into account everything necessary for the implementation of fault tolerance and to protect the user from all sorts of problems associated with the growth of his needs.
From the point of view of functionality, we decided to start with the foundation of any IP-PBX - to implement a flexible SIP server as SaaS.
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Since we are still thinking about the monetization model, the service is absolutely free. But in the future we plan to keep the possibility of free use of the service on the freemium model.

Current opportunities

Are common:

- Convenient configuration via web interface
- Support for voice transcoding
- Flexible call routing between trunks and SIP user accounts
- Recording conversations with sending by email
- Detailed call history
- Automatic formatting of caller and destination numbers (CallerID & DID)
- The service can be used together with any telecom operators and / or integrated with other SIP services.

Creating SIP users:

- Supports SIP / TLS + SRTP encryption, ZRTP (Directly and MiTM)
- Ability to park your own domains, or use ours to create identifiers.
- Customization of codecs supported by the client.
- Ability to limit the registration of SIP users from IP subnets

Trunk support:

- Authorization by IP and login / password
- The possibility of restrictions on IP
- Configure supported codecs
- Formatting caller and destination numbers (CallerID & DID) in accordance with the requirements of telecom operators

Next, we plan to prepare a series of articles on various ppbbxx.com application options.