IMS

IMS (IP Multimedia Subsystem) enables operators to deliver voice, video, and messaging services over IP networks, supporting technologies like VoLTE (Voice over LTE), VoNR (Voice over New Radio), and VoWiFi (Voice over Wi-Fi).

Combined with CSFB (Circuit-Switched Fallback) for legacy voice support, IMS provides a seamless experience as users move between LTE, 5G, and Wi-Fi networks.

Operators can ensure high-quality voice services across 4G and 5G networks, with fallback mechanisms for users still on 2G/3G networks, ensuring service continuity during the transition to all-IP communication.

Key Features
  • Support for VoLTE, VoNR, VoWiFi.
  • Circuit-Switched Fallback (CSFB) for legacy voice.
  • Seamless integration with existing voice infrastructure.
  • Rich communication services over IP.
Technical Highlights :
  • SIP-based IMS framework.
  • Diameter and GTPv2 support for signaling.
  • Integration with HSS and PCRF for policy control and authentication.
  • VoWiFi and VoNR for indoor and 5G voice coverage
 
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