VoLTE has been a very popular topic on this blog. My overview of the LTE Voice Summit missed out narrowly from the Top 10 posts of 2014 but there were other posts related to VoLTE that made it.
In this magazine article, NTT Docomo not only talks about its own architecture and transition from 3G to 4G for voice and video, it provides some detailed insights from its own experience.
The paper is embedded below and available from slideshare to download.
- DOCOMO VoLTE and Next Steps
- VoLTE Roaming with RAVEL (Roaming Architecture for Voice over IMS with Local Breakout)
- 2015 will finally be the year of Voice over LTE (VoLTE)