VoLTE: innovating voice
- Better call quality: as VoLTE introduces High Definition voice and faster call establishment.
- Higher spectral efficiency: an operator refarming its 2G bands into 4G will be able to handle 6 times more voice calls.
- Rich Communication Services (RCS): with VoLTE, mobile operators can deliver a new conversation experience of enriched voice, often bundled with new and attractive services (such as instant messaging, video calls, file sharing) and unlock new revenue potential. Moreover, VoLTE with RCS is an excellent vehicle to build a key differentiator to compete with OTT players such as Skype and WhatsApp: universal reachability through a standard MSISDN phone number.
Ensuring on-time VoLTE introduction
1. Ensuring voice call establishment
For a good voice call experience it is crucial to be always reachable and get fast access to your respondent. Astellia addresses the needs of Core EPC and Core IMS teams. In addition to reporting 4G bearer setup success or delays, Astellia monitors SIP at S1-U interface to detect interworking issues between 4G network layers and SIP voice service layers. Furthermore, Astellia provides in-depth monitoring, analysis and troubleshooting of SIP/Diameter at the Core IMS.