Project Description:

 You require access to a commercial version of the 3CX PBX system in order to be able to program the API

You need sufficient technical knowledge about PBX systems, particularly 3CX and its configuration

A Windows Background Service requires checking regular (via a call to an intranet REST Web service) if some data has changed. The details of the data are also given via the REST Call. Based on what has changed it needs to do some API call's to a 3CX software telephone system (PBX) (3CX API call's) in order to:

1) Create/update/ Remove a contact (Delete/Update also by Extension Nr.)

2) Create/Remove a contact group (Delete also by Extension Nr.)

3) Put/Remove Contacts in groups

4) Get every contact details

5) Get every Contact group details

6) Get every contact in a group

7) Create/Remove/Update a Ring group

8) Put contacts in a ring group

9) Simply add new functions to the service ourselves

You can use the 3CX Call API (3cx.com/blog/docs/take-control-of-calls-on-3cx-with-the-call-control-api/)

When you prepare an extension (a phone number) this can be a soft phone or a physical device where you need to submit the MAC address and configuration template information in order to sustain auto provisioning.

The REST service where the service may get its data is not yet developed or designed; we will be developing this REST service. For test purpose you can have to create a minimal REST service (.Net WebApi 2) to get static test data from the REST service to test de functionality of the 3CX Sync Service.

The version of the 3CX PBX software is version

We may use and include the written code in our complete software package.

Your Job:

* Make a technical analysis that would cover the needs

* Program and Design the Test REST Service in .NET WebAPI2

* Program and Design the Sync Service in .NET 4.5

* Code must be documented in source

* Document the installation, technical workings, and configuration / Diagrams (Word Document)

Skills required:

.NET, SQL, Software Architecture