Proton-KA, an automated telephone exchange

Proton-KA, an automated telephone exchange

Proton-KA, an automated telephone exchange is a universal hardware and software solution for organization and development of multi-service switching and access nodes. It combines time-division multiplexing (TDM) and IP packet information switching technologies Fully substitutes imported PBXs Siemens HiPath/OpenScape.


  • on all communication networks of the Russian Federation (public, departmental and corporate, special-purpose ones);
  • as a transit-node or terminal PBX, as well as an alarm converter;
  • operational dispatch communication systems;
  • voice announcement systems;
  • conference call systems;
  • call centers.

Produced by JSC Kalugapribor

  • Fully Russian design and production. Assigned TORP status.
  • Certified by the FSB for security levels A2 and C2 against computer attacks and information leaks through technical channels.
  • Certified by the Ministry of Communications.
  • Does not require licensing to expand the functionality, as with foreign manufacturers. Each PBX is fully functional.
  • Network cross-platform (Linux, Windows) multiuser system with window interface.
  • Operational communication consoles of own design.
  • More than 50 user service functions (forwarding, callback, incoming call notification, intervention, call parking, group call, notification, conference call up to 127 participants, IVR, etc.).
  • Support for all kinds of wired user devices (including user encrypted phones, SIP phones, Siemens/Unify digital system telephones, LG).
  • For Siemens/Unify units of Optiset, OptiPoint, OpenStage models, the OSD menu system and operation algorithms are exactly identical to Siemens. Users will not notice substitution of PBX Siemens by Proton-KA occurs.
  • Siemens/Unify digital phones can be certified for installation in a categorized room (microphones are blocked to exclude the possibility of listening to sounds in the room when the phone is hanged up).


  Modular architecture allows flexible scaling of PBX (subracks 1U, 2U, 4U, 6U)


up to 6,720 TDM ports (224E1 switch capacity) and 1,000 IP ports

Interchange interfaces

Ethernet (SIP, H.323), E1 (OKS7, EDSS1, Q.SIG, ECMAv2, CorNet-Siemens, R2, R1.5=2 VSK, 1 VSK), land lines (FXO, E&M, 1 VSK, 2 VSK, ADASE, ADASZhD, 600+750, TDNI/TDNV, etc.)

User interfaces:

FXS (60V/1800Ω, BORCHST; MB), Up0 (LG), Up0E (Siemens), Ethernet


Codecs Voice codecs (G.711a, G.711u, G.729, G.729a, G.729b, G.729ab, G.723.1, G.722, G.726, GSM, iLBC, Speex), video codecs (H.261, H.263, H.263+, H.264)

Connecting user terminals

Connecting user terminals Connection of digital multifunctional user terminals of Siemens/Unify lines Optiset, OptiPoint, OpenStage, LG lines LDP, LDK

Optical interfaces for connecting outstations

up to 20 km


Redundant control and power supply modules;

Support of SORM of two types (in accordance with Orders of the Ministry of Communications Nos 268 and 70);

Built-in diagnostics of modules and exchange connections