Nice to meet you here

My name's Konstantin, I'm a senior software/VoIP engineer (CV).
I've been working as a freelancer and designing solutions in the field of communications (Telephony, VoIP, DVB, etc).
I've already have my own stack and ready-made solutions that allows to create prototypes/solutions rapidly and saving the funds.
On this site you can found some of them, documentations and other thing.
For ideas, job offers or product purchasing, please visit a contact page.

Products

• sttd

  High performance, multi-language, neural based Speech-to-Text system.
  Enables to arrange a complete local Text-to-Speech service on regular servers.

• ttsd

  High performance, multi-language, neural based Text-to-Speech system.
  Enables to arrange a complete local Speech-to-Tpeech service on regular servers.

• emPBX

  Designed to run on resource-constrained devices and serves as a base for creating VoIP applications.

• wIM

  Small and portable, XMPP based instant messenger server.
  Enables to arrange private communications. Supports: chats, file sharing, bot interactions api and so on.
  Compatible with most XMPP/Jabber clients.
  

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• sIVR

  Freeswitch module that enabled to arrange user interaction through old plain IVR.
  Provides web based management interface, visual designer, voice input and menu speaking.
  

• eConf

  High performance and resource saving conference module for Freeswitch.
  Enables to arrange audio/video/text conferences over SIP/WebRTC.

• QuickJS module

  Fast and lightweight alternative for mod_v8 and mod_spidermonkey.

• Freeswitch TTS modules

  Collection of Text-to-Speech modules for integration with TTS services. (OpenAI, Google, etc)

• Freeswitch STT modules

  Collection of Speech-to-Text modules for integration with STT services. (OpenAI, Google, etc)

Research and experimental projects

• tSIP

  The software to arrange secured telephone communications over PSTN or VoIP networks.
  Experiments with scrambling and attempt to create something similar to Gretacoder, but in software...

• HATS (Home Amateur Telephony Service)

  The project goal is design software/hardware that enables to arrange private telephone/packet network using regular HAM equipments.

• HATV (Home Amateur Television)

  The goal of this projects is to get ability to arrange wideband communications on quite cheap, homemade equipment... And if possible keeps compatibilities with DVBx standards...

• HARI

  I've been always interested in spacecraft, DSN and so on, one day I was reading articles about ATA and I wandered, is it possible to hear the Voyagers through ordinary satellite equipment, such as: array of 2m parabolic dishes...

Other projects

• Inventory

  RFID based tracking / inventory system

• Renesas chips utilities

  Utilities for Renesas's SoC (R8C, RL78, ...)

• Old projects and my GitHUB