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ICT Technology & Business Leading the 4th Industrial Revolution

TI Square opens the smart era with infinite imagination.

We provide differentiated services in the mobile field based on its know-how accumulated over many years such as PTT, ALL-IP, IMS Core, IoT solution.

The company who provides differentiated customer values

The company who is ever-changing and carry out innovation

TI Square is leading the diversified and smarter ICT field

VoLTE Stack

VoLTE Stack Summary

Protocol Stack to provide VoLTE call service

VoLTE services are being applied to mobile phones, onboard devices of LTE-R, control panels and PS-LTE command center.

  • Provides API to easily develop VoLTE call service to various terminals even without expert knowledge about VoLTE
  • Provide SDK to develop VoLTE software by interworking with IMS network in PC Windows, iOS, Linux environment including Android

System Configuration

  • SIP : RFC3261 & extend standard compliant SIP stack
  • SDP : RFC3264 & extend standard compliant SDP module
  • TTAK.KO-06.0357 : Compliant with VoLTE terminal specification for providing UICC mobility between domestic operators

Feature

  • Easy to migration : Smart Phone(Android, iOS), Linux, Windows, Smart TV etc. are developed in native language allowing cross platform
  • SIP : RFC3261 & extend standard compliant SIP stack
  • Convenient structure to transplant diverse platform
  • Registration
  • Supports IMS authentication and Key Agreement(IMS-AKA)
  • Call Control
  • Supports VoLTE voice call processing and PSVT function
  • Supports SMS Over IMS

Reference

KT: National Disaster Safety Network Commend Center VoLTE Stack

KT: LTE-R onboard devices VoLTE Stack

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