Is SRVCC possible for 5G VoNR to 3G in case of poor coverage?
Anyone working on VoNR?
Does we have separate IMS for 5G or shared with 4G IMS?
No, SRVCC and CSFB are not supported in 5G NR and is incompatible with legacy systems.
I’m seeing Rel16 mentioning SRVCC from 5G to 3G…
PSHO from 5G to 4G, no SRVCC to 4G.
Is this correct?
Yes you’re right,but the meaning is different.
In rel. 16, SRVCC will be supported implicitly by PSHO from NG-RAN to E-UTRAN.
The meaning is different because SRVCC from E-UTRAN to UTRAN was already supported in 4G LTE.
Hope it is clear now.
For data call transfer term PSHO used.
For voice call SRVCC.
It’s mentioned SRVCC from 5G to 3G.
PSHO from 5G to 4G.
N26 interface used for PSHO.