We measure the call setup time with different background traffic over 100Base-T Ethernet Network.
It affects the call setup time and overall traffic.
From the results, we can obvious see call setup time, end-to-end delay, maximum active calls and MOS value with/without path migration.
7, we can observe that the call setup time in path migration scenario is very stable until the network status jump to FULL at about 1020th seconds.
As per Sehnaoui, currently, when a 4G subscriber makes a voice call, there is an automatic transition from 4G to 3G+ network, which will no longer be necessary upon the launch of VoLTE, whereby subscribers can directly conduct voice calls over the 4G network as is the case with internet data services VoLTE provides high-quality sound and significant improvement in quality of voice calls, with greater speed in the call setup time
Voice service latency offered by OneAir is less than 80 ms, and group call setup times
are measured at less than 300 ms.
VoLTE, which allows high-definition (HD) voice calls to be made over an LTE network, has many advantages for operators and users: HD voice quality, faster call setup times and better handovers, one all-IP network for all services, as well as improved performance under load.
Call setup times are significantly faster and the caller can rely on voice continuity with no dropped calls.
Ericsson has been selected to provide equipment and services to help T-Mobile continue expanding its nationwide 4G LTE network, improve in-building, highway and rural performance, and expand the availability of high-quality VoLTE services, which offer faster call setup times
than a non-VoLTE call, and enable customers to access the LTE network for data services during a voice call.
For the live HD (high-definition) voice call and video capability, Nokia Networks used its VoLTE solution, and services expertise to successfully conduct the project which involved making and receiving HD voice calls with superior call setup times
while simultaneously accessing ultra-fast data services over the LTE network.